Question

A block of mass 2.0 kg is placed on a smooth plane, inclined to the

horizontal at an angle of 15°
a. What is the acceleration of the block down the plane?
b. How far up the plane was the block released, if it took 1.5s to reach
the bottom after it was released from rest?

Answer 1

A) a=2.5m/s^2, down the incline
B) d=2.9m

See the picture for the explanation and work!