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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
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
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