1) Sally expends 10460 J of energy to drag a wooden crate 24.7 m across a floor with a constant speed. The rope makes an angle of 48.0° with the horizontal.
(a) How much force does the rope exert on the crate?
(b) What is the force of friction acting on the crate to impede its motion?
(c) What work is done by the floor through the force of friction between the floor and the crate?
This solution contains step-by-step calculations to determine the force of the rope on the crate, force of friction and work done.