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15 July, 06:03

Find the mass of a ball on a roof 30 meters high, if the ball's gravitational potential energy is 58.8 joules

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  1. 15 July, 06:23
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    We are given the gravitational potential energy and the height of the ball and is asked in the problem to determine the mass of the ball. the formula to be followed is PE = mgh where g is the gravitational acceleration equal to 9.81 m/s^2. substituting, 58.8 J = m*9.8 m/s^2 * 30 m; m = 0.2 kg.
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