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define. Centripetal force? derive
expression for it
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Answer:
a force which acts on a body moving in a circular path and is directed towards the center of the circular path. The expression for it is. F=mv2/r=mrw2=mwv. Directed towards the center
Explanation:
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Explanation:
•Defination:-
A centripetal force is a net force that acts on an object to keep it moving along a circular path. ... Newton's 1ˢᵗ law tells us that an object will continue moving along a straight path unless acted on by an external force. The external force here is the centripetal force.
•Derivation:-
As we know , rate of change of tangential velocity is called as the centripetal acceleration.
F= mv²/r
centripetal acceleration is given by,
aç = F/m
= mv²/r/m
∴aç = v²/r
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