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A girl of 30kg in a roundabout of radius 5m that makes one complete turn every 5seconds what's the centripetal force acting on them​

A girl of 30kg in a roundabout of radius 5m that makes one complete turn every 5seconds what's the centripetal force acting on them​
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25 votes
a girl of 30kg in a roundabout of radius 5m that makes one complete turn every 5seconds what's the centripetal force acting on them​

User Cornell
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8.1k points

1 Answer

7 votes
Fc = (mv^2)/r
W=v/r and thus v=wr
So plug back in for v and Fc = m(wr)^2/r
That simplifies to Fc = m(w^2)r
w = 2pi/5
Fc = 30 x (2pi/5)^2 x 5 = 236.8705 N
User Muna
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8.3k points
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