A ball is thrown straight up. Neglecting air resistance, which statement is not true regarding the energy of the ball?
(a) The potential energy decreases while the ball is going up.
(b) The kinetic energy decreases while the ball is going up.
(c) The sum of the kinetic energy and potential energy is constant.
(d) The potential energy decreases when the ball is coming down.
(e) The kinetic energy increases when the ball is coming down.
Ans: (a) The potential energy decreases while the ball is going up.
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