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killaI9BI
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Homework Statement
You are pushing a 53 kg crate at a constant velocity up a ramp onto a truck. The ramp makes an angle of 22 degrees with the horizontal. If your applied force is 373 N, what is the coefficient of friction between the crate and the ramp?
Homework Equations
μ = Ff/Fn
Fn = m X g X cos θ
Fnet = Fa – mg sin θ +or- μmg cos θ
The Attempt at a Solution
Fn = 53 X 9.81 X cos 22
Fnet = 373 – 53 X 9.81 sin 22 + μ X 53 X 9.81 cos 22
The book's answer is 0.37 but I just can't get the rest of the equation. Any suggestions are appreciated.