The hammer throw is a track-and field event in which a 7.3-kg ball (referred to as the "hammer") is whirled around in a slanted circle several times and released. It then moves upward with the trajectory of a projectile and eventually returns to earth some distance away. The record for an athlete for this distance is 86.75 m. Ignore air resistance and the fact that the ball is released above the ground rather than at ground level, and regard the mass of the chain and the handle to be insignificant. Assume that the slanted circle has a radius of 1.8 m and that the velocity at the instant of release is directed 41° above the horizontal. Find the magnitude of the centripetal force acting on the ball just prior to the moment of release.

The hammer throw is a track-and field event in which a 7.3-kg ball (referred to as the "hammer") is whirled around in a slanted circle several times and released. It then moves upward with the trajectory of a projectile and eventually returns to earth some distance away. The record for an athlete for this distance is 86.75 m. Ignore air resistance and the fact that the ball is released above the ground rather than at ground level, and regard the mass of the chain and the handle to be insignificant. Assume that the slanted circle has a radius of 1.8 m and that the velocity at the instant of release is directed 41° above the horizontal. Find the magnitude of the centripetal force acting on the ball just prior to the moment of release.