conservation of energy??

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conservation of energy??

consider a ball in air as it travels through a closed system. the ball loses both kinetic and gravitational potential energy so how can this be reconciled with conservation of energy? where does the energy go?

2007-10-18 18:01:27 · 2 answers · asked by robinf1988 1 in Science & Mathematics ➔ Physics

2 answers

The ball is only losing gravitational potential energy but it is gaining kinetic energy.

Potential energy loss = Gain in kinetic energy + heat energy at ball's surface due to air friction

2007-10-18 18:18:29 · answer #1 · answered by xitiz b 2 · 0⤊ 0⤋

It is used by friction (air friction) and it causes the air to be heated up very slightly.

Doug

2007-10-18 18:06:45 · answer #2 · answered by doug_donaghue 7 · 0⤊ 0⤋