During an automobile crash test, a 1000 kg car is sent towards a cement wall at a speed of 14 m/sec and bounces off with a velocity of 7 m/s in the opposite direction. What is the change in momentum of the car?

During an automobile crash test, a 1000 kg car is sent towards a cement wall at a speed of 14 m/sec and bounces off with a velocity of 7 m/s in the opposite direction. What is the change in momentum of the car?

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter9: Linear Momentum And Collisions

Section: Chapter Questions

Problem 60P: A family is skating. The father (75 kg) skates at 8.2 m/s and collides and sticks to the mother (50...

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Question

how would you solve this confusing

During an automobile crash test, a 1000 kg car is sent
towards a cement wall at a speed of 14 m/sec and bounces
off with a velocity of 7 m/s in the opposite direction. What
is the change in momentum of the car?
14,000 T
7,000 T
EAnswer
-21,000 T

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