A light string can support a stationary hanging load of 26.2 kg before breaking. An object of mass m = 2.83 kg attached to the string rotates on a frictionless, horizontal table in a circle of radius r = 0.789 m, and the other end of the string is held fixed as in the figure below. What range of speeds can the object have before the string breaks? /2 Points] A 39.0-kg child swings in a swing supported by two chains, each 2.98 m long. The tension in each chain at the lowest point is 352 N. (a) Find the child's speed at the lowest point. S m (b) Find the force exerted by the seat on the child at the lowest point. (Ignore the mass of the seat.) : ~ cupward)