A man is loading a 172kg crate into a moving truck. The ramp makes an angle of 18° compared to the flat ground. What is the coefficient of kinetic friction between the crate and the ramp?
Jan 24, 2016
There is insufficient information to answer this question.
We need to know some additional information, such as how much force is being applied to the crate, and whether the crate is sliding with constant speed or accelerating.