How fast must a 0.05kg golf ball strike a stationary 5.0kg bowling ball so that the bowling ball reaches a final velocity +10.0m/s, assuming the golf ball rebounds with 20% of its initial velocity in the opposite direction? Determine the initial velocity of the golf ball assuming the final velocity of the bowling ball is +10.0m/s, and the final velocity of the golf ball (vf g) is equal to -0.2vi g (mind the - sign). Please show your work.