The hammer throw is a track-and-field event in which a 7.3-kg ball (the “hammer”) starting from rest is whirled around in a circle several times and released. It then moves upward on the familiar curving path of projectile motion. In one throw, the hammer is given a speed of 29 m/s. For comparison, a .22 caliber bullet has a mass of 2.6 g and, starting from rest, exits the barrel of a gun at a speed of 410 m/s. Determine the work done to launch the motion of

(a) The hammer and

(b) The bullet.