Wooden Crate Motion: Force, Friction, Work done
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? _____ N (b) What is the force of friction acting on the crate to impede its motion? Magnitude _________ N