Ask a New Question
Search
Questions and answers by
BrookeNeed
Questions (28)
A 4.05 x 10-2-kg block is resting on a horizontal frictionless surface and is attached to a horizontal spring whose spring
0 answers
707 views
A cylindrically shaped piece of collagen (a substance found in the body in connective tissue) is being stretched by a force that
0 answers
665 views
Calculate the kinetic energy that the earth has because of (a) its rotation about its own axis and (b) its motion around the
0 answers
543 views
A person whose weight is W = 658 N is doing push-ups. From his feet to his center of gravity he is 0.840m and from the center of
1 answer
711 views
In a fast-pitch softball game the pitcher is impressive to watch, as she delivers a pitch by rapidly whirling her arm around so
0 answers
748 views
A "swing" ride at a carnival consists of chairs that are swung in a circle by 17.9 m cables attached to a vertical rotating
2 answers
1,479 views
A car travels at a constant speed around a circular track whose radius is 2.87 km. The car goes once around the track in 332 s.
1 answer
595 views
After skiding down a snow-covered hill on an inner tube, Ashley is coasting across a level snowfield at a constant velocity of
2 answers
524 views
A two-stage rocket moves in space at a constant velocity of +4890 m/s. The two stages are then separated by a small explosive
1 answer
551 views
A 40.2-kg skater is standing at rest in front of a wall. By pushing against the wall she propels herself backward with a
1 answer
861 views
Starting from rest, a 93-kg firefighter slides down a fire pole. The average frictional force everted on him by the pole has a
1 answer
1,231 views
A 50.4-g golf ball is driven from the tee with an initial speed of 45.7 m/s and rises to a height of 26.9 m. (a) Neglect air
1 answer
472 views
"Rocket Man" has a propulsion unit strapped to his back. He starts from rest on the ground, fires the unit, and accelerates
1 answer
978 views
Starting from rest, a 1.7x10-4 kg flea springs straight upward. While the flea is pushing off from the ground, the ground exerts
2 answers
1,158 views
The concepts in this problem are similar to those in Multiple-Concept Example 4, except that the force doing the work in this
0 answers
874 views
You are moving into an apartment and take the elevator to the 6th floor. Suppose your weight is 770 N and that of your
0 answers
604 views
A fisherman is fishing from a bridge and is using a "51.0-N test line." In other words, the line will sustain a maximum force of
2 answers
2,711 views
A 221-kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 27.7°
1 answer
675 views
A 221-kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 27.7°
1 answer
555 views
A stuntman is being pulled along a rough road at a constant velocity by a cable attached to a moving truck. The cable is
1 answer
734 views
A 96.4-kg person stands on a scale in an elevator. What is the apparent weight when the elevator is (a) accelerating upward with
0 answers
577 views
A woman stands on a scale in a moving elevator. Her mass is 65.0 kg, and the combined mass of the elevator and scale is an
0 answers
900 views
The drawing (not to scale) shows one alignment of the sun, earth, and moon. The gravitational force that the sun exerts on the
0 answers
807 views
A woman stands on a scale in a moving elevator. Her mass is 65.0 kg, and the combined mass of the elevator and scale is an
1 answer
1,113 views
A cup of coffee is on a table in an airplane flying at a constant altitude and a constant velocity. The coefficient of static
1 answer
851 views
A 8.06-kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic friction between the box and the
1 answer
590 views
At an instant when a soccer ball is in contact with the foot of the player kicking it, the horizontal or x component of the
1 answer
475 views
A person in a kayak starts paddling, and it accelerates from 0 to 0.568 m/s in a distance of 0.389 m. If the combined mass of
1 answer
571 views
Answers (1)
But How to you solve for the velocity?
