A perfectly elastic collision occurs between a 15.0-kg mass traveling at 3.50 m/s and a 9.00-kg mass traveling at 2.35 m/s. if t he final velocity of the 9.00-kg mass is 2.80 m/s, what is the final velocity of the 15.0-kg mass?
1 answer:
Momentum is conserved in a collision. Momentum is mass*velocity, so you can find your answer by calculating initial and final momentums and setting them equal to each other.
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