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Hockey puck $B$ rests on a smooth ice surface and is struck by a second puck $A$ , which has the same mass. Puck $A$ is initially traveling at 15.0 $\mathrm{m} / \mathrm{s}$ and is defiected $25.0^{\circ}$ from its initial direction. Assume that the collision is perfectly elastic. Find the final speedof each puck and the direction of $B^{\prime}$ s velocity after the collision. [Hint: Use the relationship derived in part (d) of Problem 8.96 .

$6.34 \mathrm{m} / \mathrm{s}$

Physics 101 Mechanics

Chapter 8

Momentum, Impulse, and Collisions

Moment, Impulse, and Collisions

University of Washington

Hope College

University of Winnipeg

McMaster University

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