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A 2.70-kg block starts from rest at the top of a 30.0° incline and slides a...

A 2.70-kg block starts from rest at the top of a 30.0° incline and slides a distance of 1.90 m down the incline in 1.20 s.
(a) Find the magnitude of the acceleration of the block. (m/s)^2

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

(c) Find the friction force acting on the block.
​Magnitude N
Direction

(d) Find the speed of the block after it has slid 1.90 m.    (m/s^2)

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