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A 5.0-kg hot rod car moving at 2.0m/s slams into a 4.0-kg hot rod car at rest. The speed of the two cars stuck together after colliding is? a. 1.1 m/s b. 1.5 m/s c. 2.5 m/s d. none of the above

Inquiry into Physics

8th Edition

ISBN:9781337515863

Author:Ostdiek

Publisher:Ostdiek

Chapter3: Energy And Conservation Laws

Section: Chapter Questions

Problem 9P: A 50-kg boy on roller skates moves with a speed of 5 m/s. He runs into a 40-kg girl on skates....

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Question

A 5.0-kg hot rod car moving at 2.0m/s slams into a 4.0-kg hot rod car at rest. The speed of the two cars stuck together after colliding is?

a. 1.1 m/s

b. 1.5 m/s

c. 2.5 m/s

d. none of the above

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