The gear motor can develop to 1/2 hp when it turns at 300 rev/min. if the shaft has a diameter of 1/2 in. determine the maximum shear stress in the shaft

Aball thrown by ginger is moving upward through the air. diagram a shows a box with a downward arrow. diagram b shows a box with an upward arrow. diagram c shows a box with a downward and upward arrow equal in size. diagram d shows a box with a downward and upward arrow with the downward arrow larger in size. which force diagram represents the forces on the ball? you may neglect the effects of air resistance.