Why does a body under centripetal force move if work done by centripetal force is zero?
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This might be by lifting it and changing its gravitational potential energy or it might be by increasing its speed and thus increasing its kinetic energy. A centripetal force does neither - an object in a uniform circular orbit would have constant potential and kinetic energy. It doesn't change its speed or its height.
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Answer:
This might be by lifting it and changing its gravitational potential energy or it might be by increasing its speed and thus increasing its kinetic energy. A centripetal force does neither - an object in a uniform circular orbit would have constant potential and kinetic energy. It doesn't change its speed or its height.
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