Calculate the kinetic energy a 55 kg person running at a speed of 9 0 m s.
A 2 kg crate rests on the floor.
A horizontal force of 50 0 n accelerates the crate at 1 00 m s2.
A see the free body diagram for the crate as it is being pulled.
Determine the magnitude of the normal force that a the floor exerts on the crate and b the crate exerts on the person.
How much work is required to move it at constant speed a 4 0 m along the floor against a friction force of 230 n and b 4 0 m vertically.
A 37 0 kg crate rests on a level floor.
B how much work is required to lift it vertically at constant speed 2 meters against the force of gravity.
A 35 kg crate rests on a horizontal floor and a 65 kg person is standing on the crate.
Answer 1 45 kj part b how much work is required to move it at constant speed 5 0 m vertically.
What is the minimum height where the force f can be applied so.
A 720 j b 3600 j.
A 550 kg crate rests on the floor.
Part a part completehow much work is required to move it at constant speed 5 0 m along the floor against a friction force of 290 n.
A how much work is required to move it at constant speed 2 meters along the floor against a frictional force of 150 n.
The drawing shows a 20 1 kg crate that is initially at rest.
Determine the magnitude of the normal force that a the floor exerts on the crate and b the crate exerts on the person.
Note that the view is one looking down on the top of the crate.
The crate is a uniform cube with sides 1 21 m in length.
A 1300 n crate rests on the floor.
Here s how to crack it the normal force on the object balances its weight so f n mg 100 kg 10 m s 2 1 000 n therefore f static friction max f f static max ยต s f n 0 4 1 000 n 400 n.
Express your answer to two significant figures and include the appropriate units.
A 900 n crate rests on the floor.
This is the maximum force that.
A 33 7 kg crate rests on a horizontal floor and a 65 6 kg person is standing on the crate.
A 1400 n crate rests on the floor.
Since the crate is not accelerating horizontally.
If a force of 250 n parallel to the floor is applied to the crate what s the magnitude of the force of static friction on the crate.
Since the person is not moving.
Two forces and are applied to the crate and it begins to move the coefficient of kinetic friction.
How much work is required to move it at a constant speed a 4 0 m along the floor against a friction force of 180 n and b 4 0 m vertically.
A uniform crate with a mass of 16 2 kg rests on a floor with a coefficient of static friction equal to 0 571.
