Question: A 1570N crate is pushed to the right across a level floor by a constant force of 400N directed at 30 degrees below horizontal. There is a friction between the crate and the floor.
(a) Draw. a free- body diagram of the crate indicating all forces and direction.
(b) If the crate is in equilibrium, how large is the force of kinetic friction acting on the crate?
(c) what is the coefficient of kinetic friction?