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A 2.90 kg block starts from rest at the top of a 30° incline and accelerates uniformly down the incline, moving 2.23 m in 1.90 s.

(a) Find the magnitude of the acceleration of the block.

(b) Find the coefficient of kinetic friction between the block and the incline.

(c) Find the magnitude of the frictional force acting on the block.

(d) Find the speed of the block after it has slid a distance 2.23 m.

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