A ball drops some distance and gains 30 J of kinetic energy. The work done by air resistance on the ball is Wnc = -5 J (i.e., the ball loses 5 J of energy due to air resistance). How much gravitational potential energy did the ball lose? (Hint: If there were no air resistance, the ball would have gained 35 J of kinetic energy.) A) more than 30 J B) exactly 30 J C) less than 30 J
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- The work done by air resistance is \( W_{\text{nc}} = -5 \) J. - If there were no air resistance, the ball would have gained 35 J of kinetic energy. Show more…
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