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Solved: A 70.0-kg ice hockey goalie, originally at rest,
Chapter 8, Problem 30(choose chapter or problem)
Problem 30PE
A 70.0-kg ice hockey goalie, originally at rest, catches a 0.150-kg hockey puck slapped at him at a velocity of 35.0 m/ s. Suppose the goalie and the ice puck have an elastic collision and the puck is reflected back in the direction from which it came. What would their final velocities be in this case?
Questions & Answers
QUESTION:
Problem 30PE
A 70.0-kg ice hockey goalie, originally at rest, catches a 0.150-kg hockey puck slapped at him at a velocity of 35.0 m/ s. Suppose the goalie and the ice puck have an elastic collision and the puck is reflected back in the direction from which it came. What would their final velocities be in this case?
ANSWER:
Solution 30PE
The goalie and the hockey puck have an elastic collision. Both momentum and energy in such a collision are conserved.
Step 1 of 2
Let initial velocity of the goalie, initial velocity of the puck,
final velocity of the goalie, final velocity of the puck, mass of the goalie, mass of the puck
Given data:
kg
m/s
kg
We are required to calculate and .