Question

A file cabinet made of steel (m=50 kg) sits in the back of a dump truck. The bed of the truck, which is also made of steel, is slowly tilted. The coefficients of friction for steel on steel are μ_s = 0.80 and μ_k = 0.60. a) (4 points) What is the magnitude of the static friction force on the cabinet when the bed is tilted 20 degrees? Include a free body diagram in your solution. b) (4 points) At what angle will the file cabinet start to slide down?

Answer 1