A railway carriage of mass 9000 kg moving with a speed of 36 km h
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collides
with a stationary carriage of the same mass. After the collision, the carriages
get coupled and move together. Calculate their common speed after collision.
What is the nature of this collision? Give reason for your answer?

1

Answers

2016-03-14T20:08:33+05:30
18 kmph. Elastic collision. Because both movement and kinetic energy were conserved.
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