physics problem

Question

  A man pushes a crate up a rough slope as shown in the figure. The crate is accelerating up the slope. If necessary, use Fs to denote the force of static friction and Fk to denote the kinetic force of friction.

Answer 1

If the force exerted is up the incline, the net force = F - F_k - mgsinθ = ma. There is no question to the problem. Note F_k = mgμ_kcosθ

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