A 700-g ball B is hanging from an in extensible cord attached to a support at C. A 350-g ball A strikes B with a velocity of 6 m/s at an angle of 20 degrees with the vertical. Assuming no friction and denoting by e the coefficient of restitution, determine the magnitudes Va2 and Vb2, the velocities of the balls after impact and the percentage of energy lost for

Case 1)e = 1,

Case 2)e = 0.75,

Case 3)e = 0.

C A