A railroad tank car rolls on a track at 3.40 m/s toward two identical coupled tank cars, which are rolling in the same direction as the first, but at a speed of 1.20 m/s. The first reaches the second two and all couple together. The mass of each is 3.35 ✕ 104 kg.A) What is the speed (in m/s) of the three coupled cars after the first couples with the other two? (Round your answer to at least two decimal places.)B) Find the (absolute value of the) amount of kinetic energy (in J) converted to other forms during the collision.

The objective of the question is to find the speed of the three coupled cars after the collision and…

Answered: A railroad tank car rolls on a track at…

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter11: Collisions

Section: Chapter Questions

Problem 17PQ

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A railroad tank car rolls on a track at 3.40 m/s toward two identical coupled tank cars, which are rolling in the same direction as the first, but at a speed of 1.20 m/s. The first reaches the second two and all couple together. The mass of each is 3.35 ✕ 10⁴ kg.

A) What is the speed (in m/s) of the three coupled cars after the first couples with the other two? (Round your answer to at least two decimal places.)

B) Find the (absolute value of the) amount of kinetic energy (in J) converted to other forms during the collision.

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