what is centripetal force? Derive an expression for it. Show that centripetal force does no work.
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Centripetal force is a force on an object directed to the center of a circular path that keeps the object on the path. ... The velocity of the object is constant and perpendicular to a line running from the object to the center of the circle; it is called tangential velocity.
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Answer:
Centripetal force:
The force which acts on an object moving along a circle and directed towards the centre of the circle is centripetal force.
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