1. The problem statement, all variables and given/known data 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 1.80 m 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 58.0 N to keep from sliding off. Jackie is sitting at the edge, a distance 3.67 m from the center. With what horizontal force must Jackie hold on to keep from falling off? If Jackie falls off, what will be her horizontal velocity when she becomes airborne? I attempted this problem but got the wrong answer. What I did first was 58N = 29kg*V^2 ========= 1.80 V = 1.89 m/s Fnet = m*v^2 --------- R Fnet = (29kg)(1.89m/s)^2 -------------------- 3.67 Fnet = 28.4N What did I do wrong?