Answer:
Step-by-step explanation:
The Law of Momentum Conservation applies, and the formula for us here specific to this problem is:
and filling in:
[(1.50*4.50)+60.0*0)] = [(1.50 + 60.0)v] and
6.75 + 0 = 61.5v so
v = .110 m/s in the same direction as the ball