The figure below shows a ball resting on a frictionless track at position A.

The ball has a mass of 20 kg and is released from position A, the acceleration due to gravity is 9.8 m/s. How much kinetic energy will the ball have at position B?

The figure below shows a ball resting on a frictionless track at position A The ball has a mass of 20 kg and is released from position A the acceleration due t class=