A 6.43 kg ball is thrown upward with an initial speed of 14.34 m/s. Ignore air resistance when answering the following questions.
a) What is the ball's initial kinetic energy?
b) What is the ball's kinetic energy when it reaches its maximum height?
c) What is the ball's gravitational potential energy (relative to Earth's surface) when it reaches its maximum height?
d) What is the ball's maximum height?
e) What is the ball's kinetic energy just before it returns to your hand?