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Newest Forces and Motion Questions

1. An object is pushed upwards against a slope by a pushing force (P) which forms an angle of 15° with slope. The object weighs
   1. 1 answer
   2. 139 views
2. An elevator has a mass of 2250 kg.a) What is the tension in the cable that supports the elevator when it is at rest? Complete
   1. 5 answers
   2. 202 views
3. Three sleds are tied together and pulled with a force of 150 N [E]. The mass of sled 1 is 13.0 kg, the mass of sled 2 is 10.0
   1. 1 answer
   2. asked by bhvhtr
   3. 565 views
4. An empty truck weight4000N. Its engine can produce a maximum acceleration of 1m/s2. Ifthe truck is loaded with 2000N, find the
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   2. asked by rtg
   3. 384 views
5. 1. A block of mass 57.1 kg rests on a slope having an angle of elevation of 28.3°. If pushing downhill on the block with a
   1. 7 answers
   2. asked by Cameron
   3. 4,976 views
6. The three blocks shown are released from rest and are observed to move with accelerations that have a magnitude of 1.5 m/s^2.
   1. 1 answer
   2. asked by Anonymous
   3. 3,461 views
7. the nail puller shown in the figure below you exert a force 53.2 cm from the pivot and the nail is 1.50 cm on the other side.
   1. 1 answer
   2. asked by stephanie
   3. 1,235 views
8. Josh pulls a sled with a force of 100-N at an angle 30° above horizontal axis. The total mass of the sled and Josh’s sister
   1. 1 answer
   2. asked by Meg
   3. 2,365 views
9. A) An object with mass M=10kg is held on a incline. The object and the incline surfaces have a static friction coefficient of
   1. 1 answer
   2. asked by Timothy
   3. 1,484 views
10. Using a simply pulley/rope system, a crewman on an Arctic expedition is trying to lower a 6.17-kg crate to the bottom of a steep
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    2. asked by Morgan
    3. 790 views
11. A 2 kg block is resting on a 37 degree frictionless inclined plane, attached by a string to a frictionless pulley at the top of
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    2. asked by Catherine
    3. 761 views
12. ON is the vertical plumb line.A horizontal force F applies at M to push the piston at O and N,with the help of rods MO,MN.The
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    2. asked by Joey
    3. 561 views
13. A ladder (ℓL = 7.50 m) of weight WL = 350 N leans against a smooth vertical wall. The term "smooth" means that the wall can
    1. 1 answer
    2. asked by Lola
    3. 3,631 views
14. A mechanic jacks up a car to an angle of 10◦ with the horizontal in order to change the front tires. The car is 2.78 m long
    1. 1 answer
    2. asked by morg
    3. 729 views
15. A 6m long uniform ladder which has a mass of 25kg leans with its upper end against a smoorth vertical wall and its lower end on
    1. 5 answers
    2. asked by Tyrone
    3. 2,384 views
16. 1. Two similar cylindrical polished bars weighing 5.00 N each lie next to one another in contact. A third similar bar is placed
    1. 3 answers
    2. asked by GG Khannam
    3. 721 views
17. Blocks A and B of weight 200N and 100N respectively, rest on a 30 inclined plane and areattached to the post which is held
    1. 1 answer
    2. asked by Kishore
    3. 967 views
18. You are given a four-wheeled cart of mass 11 kg, where the distance between a wheel and its nearest neighbors is 2.1 m. Suppose
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    2. asked by name
    3. 757 views
19. . A platform with boat weighs 10,000 N. Four cables are attached to the platform as shown; the edges of the platform are always
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    2. asked by JJ
    3. 642 views
20. A spring lies on a horizontal table, and the left end of the spring is attached to a wall. The other end is connected to a box.
    1. 3 answers
    2. asked by nada
    3. 2,164 views
21. Kara (55kg) is standing next to her brother Ben (80kg) on a large piece on frictionless ice. Kara decided to push her brother
    1. 1 answer
    2. asked by Diane
    3. 1,034 views
22. A dock worker loading crates on a ship finds that a 29 kg crate, initially at rest on a horizontal surface, requires a 90 N
    1. 1 answer
    2. asked by sam
    3. 756 views
23. A block of mass m1 = 26 kg rests on a wedge of angle θ = 48∘ which is itself attached to a table (the wedge does not move in
    1. 1 answer
    2. asked by al1974
    3. 644 views
24. a. 2 objects each of mass 200 kg and 500 kg are separated by 50 cm. Where body of mass 20 kg should be placed so that the
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    2. asked by steffy Jane
    3. 714 views
25. Suppose you hang an object of weight W by a string from a hanging spring scale, such as the kind used in some grocery stores.
    1. 1 answer
    2. asked by Hanna
    3. 1,035 views
26. We use a wrench to turn nuts on bolts because they require less force. Consider a hexagonal nut 1 cm in diameter. We can tighten
    1. 1 answer
    2. asked by Tony
    3. 742 views
27. A student pushes stright along the handles of a mower with a force of 200 N. The handles make a angle of 20°, with respect to
    1. 1 answer
    2. asked by Alyssa
    3. 1,674 views
28. a force F pushes on a box of mass m that initially is at rest on a rough, horizontal surface. the force F is directed at an
    1. 1 answer
    2. asked by Matt
    3. 640 views
29. A rigid rod of massm3is pivoted at point A, and masses m1 and m2 are hanging from it, as shown in the figure. (a) What is the
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    2. asked by liza
    3. 1,167 views
30. A 1290-N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A W = 1920-N crate
    1. 1 answer
    2. asked by TaylorBaum
    3. 824 views
31. A boy weighing 4.2 102 N jumps from a height of 1.80 m to the ground below. Assume that the force of the ground on his feet is
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    2. asked by Anonymous
    3. 557 views
32. An 800 N man stands on a scale in a motionless elevator. When the elevator begins to move, the scale reads 650 N. Find the
    1. 3 answers
    2. asked by Sam
    3. 2,459 views
33. A cord runs around two massless, frictionless pulleys; a canister with mass m=20 kg hangs from one pulley; and you exert a force
    1. 1 answer
    2. asked by Mikaela
    3. 1,363 views
34. A turnbuckle is needed to apply an 8kN force on a cable. If the efficiency of the turnbuckle is 40% and the force applied is
    1. 1 answer
    2. asked by Henri
    3. 578 views
35. A turnbuckle is needed to apply an 8kN force on a cable. If the efficiency of the turnbuckle is 40% and the force applied is
    1. 1 answer
    2. asked by Henri
    3. 652 views