Merry-go-round. two identical twins, jena and jackie, are playing one december on a large merry-go-round (a disk mounted parallel to the ground on a vertical axle through its center) in their school playground in northern minnesota. each twin has a mass of 29.0 kg. the icy coating on the merry-go-round surface makes it frictionless. the merry-go-round revolves at a constant rate as the twins ride on it. jena, sitting a distance 1.71m from the center of the merry-go-round, must hold on to one of the metal posts attached to the merry-go-round with a horizontal force of 56.0 n to keep from sliding off. jackie is sitting at the edge, a distance 3.58 m from the center. with what horizontal force must jackie hold on to keep from falling off?

245.44 N

Explanation:

Given

mass of each twins(m)=29 kg

Jena distance from center is 1.71 m

Horizontal force applied is 56 N

Jackie distance from center is 3.58

centripetal force is given by

In first case horizontal force is balanced by Centrifugal force

----1

----2

Divide 1 & 2 we get

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