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?

1 Answer
Ed Hitchcock
Jan 24, 2016

There is insufficient information to answer this question.

Explanation:

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.

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