The speed with which the goalie slide on the ice after catching the puck.
Answer to Problem 18PP
Explanation of Solution
Given:
The mass of the hockey puck,
The mass of the goalie,
The initial velocity of the puck,
Since, the goalie was at rest initially, thus initial velocity of the goalie,
Formula used:
Momentum of an object of mass m and moving with velocity v is given by,
And, law of conservation of linear momentum: Momentum is conserved in a closed and isolated system and is given by,
Calculation:
Consider the puck and the goalie as a system, then it will be a closed and isolated system and law of conservation of momentum can be applied to it.
Let, the speed of the goalie after catching the puck be
Using given values in above,
Conclusion:
Thus, the speed of the goalie after catching the puck is
Chapter 9 Solutions
Glencoe Physics: Principles and Problems, Student Edition
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