7. Nishi is driving his 20O0kg car at 50 m/h. He diverts his attention from the road to message a friend and drives into the back end of the car in front of him, moving them both at speed of 40km/h. If the second car has a mass of 10o0kg, how fast was it travelling prior to the collision?

Glencoe Physics: Principles and Problems, Student Edition
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ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Paul W. Zitzewitz
Chapter9: Momentum And Its Conservation
Section9.1: Impulse And Momentum
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Momentum and Collision
7. Nishi is driving his 2000kg car at 50
m/h. He diverts his attention from the
road to message a friend and drives into
the back end of the car in front of him,
moving them both at speed of 40km/h. If
the second car has a mass of 1000kg,
how fast was it travelling prior to the
collision?
Transcribed Image Text:Momentum and Collision 7. Nishi is driving his 2000kg car at 50 m/h. He diverts his attention from the road to message a friend and drives into the back end of the car in front of him, moving them both at speed of 40km/h. If the second car has a mass of 1000kg, how fast was it travelling prior to the collision?
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