Physics, asked by zainab1780, 5 months ago

A 5000-kg freight car runs into a 10,000-kg freight car at rest. They couple upon collision and move with a speed of 2 m/s. What was the initial speed of the 5000-kg car?

Answers

Answered by sidd5449
0

Answer:

use the law of conservation of linear momentum

in this case, the law can be modified as

m1v1+ m2v2= (m1+ m2)v

Explanation:

Answered by anasershad
0

Answer:

Explanation:

2/3 m/s.

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