An inclined plane makes an angle of 30.0◦ above the horizontal and is 4.00 m long measured along the slope. A block is placed at the top of the plane and released from rest. Calculate the speed of the block when the block reaches the bottom of the plane. Assume the plane is smooth so that no friction force acts on the block.

Answer 1

the height (h) of the top of the plane is ... 4.00 m * sin(30.0º)

velocity (v) at the bottom is ... √(2 g h)