Question

8.30- Elastic Collisions in One Dimension Part A A 83.0-kg ice hockey goalie, originally at rest, catches a 0.150-kg hockey puck slapped at him at a velocity of 36.0 m/s. Suppose the goalie and the ice puck collision and the puck is reflected back in the direction from which it came. What is the final velocity of the goalie? have an elastic Submit Answer Tries 0/5 Part B What is the final velocity of the puck? Tries 0/5 Submit Answer © 1998-2019 by Florida State University. All rights reserved The contents of this web site are for use by the students enrolled in this course only. Any distribution of the contents in whole or in parts and in any form, including posting web or in printed version, is a violation of the Copyright laws and the FSU honor codes. he This discussion is closed. Send Feedback W 23 22

Answer 1

final velocity of goalie

v1 = 2 m1 u1 / ( m1 + m2) = 2* .15*36 / ( 0.15+83)

v1 = 0.13 m/s

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final velocity of ball

v2 = ( m1 - m2) u1 / ( m1 + m2)

v2 = ( 0.15 - 83)* 36 / ( 0.15 + 83 )

v2 = 35.87 m/s ( directed opposite to its initial velocity)

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