Question

A 3.20-kg block starts from rest at the top of a 30.0° incline and slides a distance of 2.10 m…

(a) Find the coefficient of kinetic friction between block and plane.

(b) Find the friction force acting on the block.
-Magnitude: ?
-Direction: ?

(c) Find the speed of the block after it has slid 2.10 m.

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