31. A 100 kg golf ball is moving to the right with a velocity of 20 m / s. It makes a head
of collision with an 8 kg steel ball, initially at rest. Compute velocities of the balls
after
A. -19.5 m/s and 0.5 m/s
D. -13.7 m/s and 3.5 m/s
B. -17.1 m/s and 1.5 m/s
E. -11.9 m/s and 6.7 m/s
C. -15.1 m/s and 2.5 m/s