Asked by Sarah

a 78kg hockey player standing on frictionless ice throws a 6.0kg bowling ball horizontally with a speed of 3.0m/s. With what speed does the hockey player recoil?
Answered by Elena
m1=78 kg, m2 =6 kg, v2 = 3m/s, v1 =?

0 = m1•v1 – m2•v2,
v1 = m2•v2/m1
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