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Newest Mechanics Questions

1. Which terms correctly represent a vector quantity and its respective unit?a speed - meters per second b weight - kilogram c mass
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2. A pushing force of 7 N to the right is applied to a book on a table. A frictional force of 3 N is applied in the opposite
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3. If motion is perpendicular to force, no work has been done.Group of answer choices True False
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4. Which of the following describes the ideal mechanical advantage?Effort Distance / Resistance Distance Force x Distance Force x
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5. Suppose an adult pulls on the rope of a sled with a force of 85N and at an angle of 26° with the ground. If the sled moves 40 m
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6. Assuming no friction, what is the minimum work needed to push a 2,222 kg truck 53 m up a 10° incline?
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7. Assuming no friction, what is the minimum work needed to push a 1,755 kg car 65 m up a 20° incline?
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8. Suppose a 115 N force is applied to a lawnmower handle at an angle of 25° with the ground and the lawnmower moves along the
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9. Suppose a 115 N force is applied to a lawnmower handle at an angle of 25° with the ground and the lawnmower moves along the
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10. My car hits a mosquito, and the mosquito hits back, equally.a 3rd Law b 1st Law c 2nd Law
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11. A 5 kg metal cart is sitting at rest on a frictionless ice surface. Another metal cart whose mass is 1 kg is propelled at the
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12. A 4 kg object is lifted from the floor and placed on a shelf that is 3 m above the floor. If the object falls off the shelf and
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13. A 48 kg train is sitting at rest on the track. Another train whose mass is 52 kg hits the first train in a one-dimensional
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14. What amount of work must a 55 kg runner do to accelerate from rest to a velocity of 3 m/s?
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15. A 48 kg train is sitting at rest on the track. Another train whose mass is 52 kg hits the first train in a one-dimensional
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16. A 5 kg metal cart is sitting at rest on a frictionless ice surface. Another metal cart whose mass is 1 kg is propelled at the
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17. A book is at rest on a flat table. A person gives the book a shove and it slides across the table. The book eventually comes to
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18. A 16-pound bowling ball strikes a 3.5-pound bowling pin. The pin is moving very fast after the collision. It has a large
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19. Use the table to answer the question. Object Mass (grams) table tennis ball 2.7 baseball 147.0 small rock 248.2 penny 2.5 A
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20. Two teams are playing tug of war. The tables show the members of each team and how much pulling force each team member applies
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21. In one or two sentences, make a hypothesis about whether or not it is easier to start the box moving than to keep it moving on a
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22. In 1-2 sentences, summarize why the force required to move a ping pong ball is less than the force required to move a bowling
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23. What is the magnitude of a force?(1 point)Responses the type of force the type of force the motion of the force the motion of
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    2. asked by loaf
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24. In 3-5 sentences, summarizes the balanced forces that are present when a soccer ball us resting on the ground, and the
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25. In 1-2 sentences, describe what would happen to the arrows and forces if the surface that the crate was on ice. Hint ice has
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26. Two people are on a train that is moving at 10 m/s north. They are walking 1 m/s south relative to the train. Relative to the
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27. While you push a box you begin to decrease the force you are exerting on the box. When will the box reach static equilibrium?(1
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28. Two movers are attempting to push a couch up a ramp. One movers applies a force of 80 N to the right, but the force of friction
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29. Two mental balls with the same mass hang so that they are touching each other. The ball on the left is pulled to the side and
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    2. asked by Sandra Trea
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30. A bowler throws a ball down the lane toward the pins. The ball reaches the pins and slowly moves through them, knocking down the
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31. Thinking about Newton's third law, it a soccer ball's mass is 6 kg and a player with a mass of 60 kg kicks the soccer ball
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32. What is the magnitude momentum of a 2 kg body that moves with a speed of 3 m/s?(1 point)Responses 5.0 5.0 1.0 1.0 6.0 6.0 1.5
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    2. asked by smarty pants
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33. What is the representation of the momentum vector?(1 point)Responses a dot a dot a number a number a straight line a straight
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    2. asked by smarty pants
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34. Which of these quantities is a vector?(1 point)Responses distance distance time time speed speed momentum
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    2. asked by smarty pants
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35. In a closed system, three objects have the following momentums: 110 kg⋅m/s, −65 kg⋅m/s , and −100 kg⋅m/s . The objects
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    2. asked by smarty pants
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36. A hockey puck is traveling at a velocity of 30 m/sm/s. The puck has a mass of 0.12 kg. What momentum is the puck traveling with?
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    2. asked by smarty pants
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37. Three individuals are pushing a vehicle that is held in place by 600 N of force, and the combined effort of all three
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    2. asked by smarty pants
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38. Which quantity in this image is vector, which is scalar?An illustration shows two cyclists of mass 160 kg moving with a velocity
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    2. asked by smarty pants
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39. Distance vs Displacement
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40. What is the difference between a vector and a scalar?a A vector is only used in measuring forces, a scalar is only used in
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41. Two metal balls with the same mass hang so that they are touching each other. The ball on the left is pulled to the side and
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    2. asked by Jayla
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42. A ball bounces on the ground. How do the ball and the ground act on each other?(1 point)Responses The ball exerts a stronger
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    2. asked by Jayla
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43. A coin (5 grams), a small parachute (21 grams), and a hammer (710 grams) are all dropped from a height of 10 meters. The coin
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44. A person is riding a skateboard on a U-shaped ramp. At which point does the person have the greatest potential energy?(1 point)R
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    2. asked by In 2010, approximately 4.6×107 tons of paper we
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45. Two metal balls with the same mass hang so that they are touching each other. The ball on the left is pulled to the side and
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46. Which answer best describes displacement? (1 point) Responses Displacement is a scalar quantity which accounts for how far away
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47. QuestionFour movers pick up boxes. Each box has a different mass, and each mover applies a different amount of force to lift the
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    2. asked by bots lover
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48. A balloon floats inside a stopped car. When the car starts moving forward, the balloon appears to move backward relative to the
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    2. asked by bots lover
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49. put this in easy words and in paragraph form and keyboard fontTo determine the gravitational potential energy (PE) of a 65 kg
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50. A 65 kg65 kg diver stands still on a tower, 10.0 m 10.0 m above the water. (a) Calculate the gravitational potential energy of
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51. Identify the relationship between the potential energy (PE) and kinetic energy (KE) of a person standing on a diving platform
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52. Two bowling balls of different masses collide while accelerating at 1.875 m/s 2 . The first ball, rolling to the right, weighs 7
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53. A 111kg crate is mkving down a wall at a rate of 6.0m/s squared. A person pushed horizontally in order to stop it. The force of
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54. A sledgehammer is swung at a wall once the sledgehammer hits the wall it does not break through how do the hammer and the wall
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55. Two teams are playing tug of war. The tables show the members of each team and how much pulling force each team member applies
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56. Four friends push on the same block in different directions. Allie pushes on the block to the north with a force of 18 N. Bill
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57. A net force is applied to an object. Which statement correctly describes the relationship between the net force, mass, and
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58. Use the equation for the motion of an accelerating object to answer the question.x=x0+v0t+1/2at^2 Which equation could describe
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59. A group of children are engaged in a game of tug-of-war. The children on the left-hand side of the rope pull with magnitude of
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60. Use the image to answer the question.An illustration shows a person running after a rabbit. The person weighs 60 kilograms, and
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    2. asked by In 2010, approximately 4.6×107 tons of paper we
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61. Now click the button to increase the force to 150N.Does the crate start to move? No What is the horizontal net force on the
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62. The wind blows a lawn chair that weighs 4 kg into a fence with a force of 8 N. How much reaction force does the fence exert on
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63. Two metal balls with the same mass hang so that they are touching each other. The ball on the left is pulled to the side and
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64. QuestionWhich situation describes a negative acceleration?(1 point) Responses a bicycle increasing its velocity as the rider
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65. QuestionFour movers pick up boxes. Each box has a different mass, and each mover applies a different amount of force to lift the
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66. What is inertia?(1 point)Responses the motion of an object the motion of an object the speed and direction of an object in
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67. QuestionWhat is the momentum of an object?(1 point) Responses the net force acting on the object the net force acting on the
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68. Magnitude and Direction of Force Quick Check3 of 43 of 4 Items Question A soccer player kicks a ball toward a net. Which
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69. Question 1Which is a vector quantity? a velocity b speed Question 2 What is the difference between distance and displacement? a
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70. picture shows two guys holding signs the sign on the left says 5 meters long and the sign on the right says 5 meters eastIn the
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71. Four students push on a block of wood with the forces shown in the diagram below. Assume friction is negligible. What is the net
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72. What is the net force acting on the block? Are the forces balanced or unbalanced? How will the block move?a The net force on the
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73. Potential Energy of a System Quick Check4 of 44 of 4 Items Question If a monkey drops a banana off of a cliff, where are the
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    2. asked by quandale dingle
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74. 1. Which is a vector quantity?a speed b velocity 2. What is the difference between distance and displacement? a Distance is
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75. Suppose a motorcyclist rides a certain high-speed motorcycle. He reaches top speed and then coasts up a hill.The maximum height
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76. In 1989, Michel Menin of France walked on a tightrope suspended under a balloon nearly at an altitude of3150 m above the ground.
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77. You are told 3 things... 1 that there are two objects with equal masses. 2. Both objects are in motion. 3. One object has a
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78. Question 1Which is a vector quantity? a velocity b speed Question 2 What is the difference between distance and displacement? a
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79. The kinetic energy of a golf ball is measured to be 1433 J. If the golf ball has a mass of about 47.0 g, what isthe ball’s
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80. Four movers pick up boxes. Each box has a different mass, and each mover applies a different amount of force to lift the box.
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    2. asked by Sandra Trea
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81. The dog has a mass of 63kg and the boy has a mass of 51kg. Which of the two has the LOWER kinetic energy?(1 point) The dog. The
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    2. asked by help
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82. Two people are on a train that is moving at 10 m/s north. They are walking 1 m/s south relative to the train. Relative to the
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83. What is the momentum of an object?(1 point)Responses the state of motion of an object with mass the state of motion of an object
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84. A net force is applied to a moving object. Which statement best describes the effect of the force?(1 point)Responses The force
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85. While you push a box you begin to decrease the force you are exerting on the box. When will the box reach static equilibrium?(1
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86. 7. When someone jumps down on a trampoline, that person is propelled upwards. Choose the best statement describing how this
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87. A ball falls from a shelf. Assuming there is no friction, why is the conservation of mechanical energy independent of mass?(1
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88. As the bicyclist rides from right to left, at which of the three points, if any, is the bicyclist's potential energy increasing?
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    2. asked by help
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89. Two teams are playing tug of war. team a pulls to the right with a force of 450 n. team b pulls to the left with a force of 415
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90. Question: 1. Which of the equations below are dimensionally correct? (where v is velocity, x is position, a is acceleration, and
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    2. asked by mimi
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91. Ball A has a mass of 12.0 kg and is moving due west with a velocity of 2.0 m/s while ball B has a mass of 3.5 kg and is moving
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92. Ball A has a mass of 12.0 kg and is moving due west with a velocity of 13.0 m/s while ball B has a mass of 3.5 kg and is moving
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93. An object hits the ground with a velocity of 133.0 m/s and is brought to rest in 2.5 seconds. If the object's mass is 56. kg,
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94. A medicine ball whose mass is 11. kg is traveling with a velocity of .8 m/s due west and collides with a second medicine ball
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95. A 0.14 kg baseball is thrown horizontally at 38. m/s and after it is struck by a bat, it travels at -38. m/s. What impulse did
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96. Which of the following describes impulse?mass multiplied by acceleration mass multiplied by velocity time multiplied by velocity
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97. A 0.16 kg cricket ball is thrown horizontally at 30. m/s and after it is struck by a cricket paddle, it travels at -30. m/s. If
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98. A 0.14 kg baseball is thrown horizontally at 38. m/s and after it is struck by a bat, it travels at -38. m/s. If the contact
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99. A 0.14 kg baseball is thrown horizontally at 38. m/s and after it is struck by a bat, it travels at -38. m/s. If the contact
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100. A 15.5 kg ball is moving with a momentum of 40.25 kg⋅m/s. What is the velocity of the ball?
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