A 26 kg child is riding a playground merry go round that is rotating at 38.4 rev/min. Part A) What net force is acting on her if she is standing on the merry go round 1.15m from its center in newtons? The net force in this situation is sometimes called “centripetal force”. Part B) What net force (in N) is acting on her if she is standing on an amusement park merry go round that rotates at 3.6 rpm and she is 7.5m from its center? Part C) How many times her weight is the force in part A? Part D) How many times her weight is the force in Part B?

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Centripetal Force

A particle, body, object or certain mass while travelling in a rotational path or semicircular path, experiences an inertia force. If that inertia force pulls the towards the inward of the imaginary circle in the rotation, it is termed as centripetal force.