A crate with a mass of 5 kg is on a ramp that is inclined at an angle of 30° from the horizontal. A force with a magnitude of 100 N directed parallel to the ramp is used to pull the crate with a constant speed up the ramp a distance of 5 cm. Coefficient of friction is .02. 1. What is the work done on the crate by the applied force F? 2. What is the work done on the crate by the gravitational force exerted on the crate by Earth? 3. What is the work done on the crate by the normal force, with a magnitude of Fn, exerted on the crate by the ramp? (Hint: recall that the normal force is perpendicular to the surface of the ramp.)
A crate with a mass of 5 kg is on a ramp that is inclined at an angle of 30° from
the horizontal. A force with a magnitude of 100 N directed parallel to the ramp is
used to pull the crate with a constant speed up the ramp a distance of 5 cm. Coefficient of friction is .02.
1. What is the work done on the crate by the applied force F?
2. What is the work done on the crate by the gravitational force exerted on the crate by Earth?
3. What is the work done on the crate by the normal force, with a magnitude
of Fn, exerted on the crate by the ramp? (Hint: recall that the normal force
is perpendicular to the surface of the ramp.)
4. What is the work done on the crate by the frictional force Fk?
5. What is the total force acting on the crate?
6. What is the work done on the crate by the total force?
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