1. A large crate is placed on a ramp. The parallel force is 380N and the force of friction is 500N. a) How much force is required to push the crate up the ramp? B)
How much force is required to push the crate down the ramp?

If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?

Astone weighing 1.5 kilograms is resting on a rock at a height of 20 meters above the ground. the stone rolls down 10 meters and comes to rest on a patch of moss. the gravitational potential energy of the stone on the moss is joules.

Aforce of 100 newtons is used to move an object a distance of 15 meters with a power of 50 watts. find the work dine and the time it takes to do the work