A ball whose mass is 2 kg falls freely from position A as shown in the figure. When it reaches B, the kinetic energy of the ball is 2 times its potential energy. Calculate:(a). point B height from ground level! (b). Speed at point B (c). Speed the ball shortly before it reaches the floor (d). At what height does the ball reach the highest and lowest speeds (e). Mechanical energy at each point on the ball thanks