Question

A ball with a mass of 2kg rests on an angle of 10degrees .The ball is to be released to roll down the incline plane, neglecting all friction determine the following,, a the loss in potential energy after it has rolled 12m, b The kinetic energy after it has rolled 12m, c The velocity after it has rolled 12m, d The original height that the ball has rolled from, inorder to reach the bottom of the slope at 20m/s