ACTIVITY 3 Take a tennis ball. Release it from a height on a hard ground. You will observe that the ball after striking the ground bounces several times. Answer the following questions : (a) What is the potential energy and kinetic energy when you release the ball ? (b) Why does the ball bounce back after striking the ground ? due to free of chai (c) From where does the ball get the kinetic energy for motion after striking the ground ? PRODUCTION OF HYDRO ELECTRICITY
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