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Two bodies moving with constant velocities collide with each other. Which of the following quantities remain conserved?

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in Physics – Class 11 by (74.2k points)
Two bodies moving with constant velocities collide with each other. Which of the following quantities remain conserved?

(a) Momentum

(b) Speed

(c) Force

(d) Velocity

I had been asked this question during an interview for a job.

My question is based upon Laws of Motion topic in division Laws of Motion of Physics – Class 11

1 Answer

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Best answer
Correct option is (a) Momentum

Easy explanation: Two bodies collide in the absence of any external force. In this case the momentum will remain constant because there is no force, hence, there is no change in momentum. The velocity and speed of the bodies might change after collision.

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