The diagram illustrates a ball suspended from a string. The ball moves from point W to point Z and then returns to point W. Which statement about the ball is true?
- AThe kinetic energy of the ball is greatest at point W.
- BThe kinetic energy of the ball is greatest at point X.
- CThe kinetic energy of the ball is greatest at point Y.
- DThe kinetic energy of the ball is the same at all points of the swing.