Question

Prove that the velocity of centre of mass of system of particles remains constant if no external force acts on it.​

Answer 1

Answer:

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Answer 2

Answer:

M for mass

And V for velocity.

When there is not external force the acceleration of body is zero.

The velocity of the body will be

′

v

′

Force= rate of change of momentum

⇒F=d(mv)/dt

⇒m(dv/dt)=F

The external force F=0

M(dv/dt)=0

dv/dt=0

M is not zero

So this proves that velocity will always be constant in such scenario.

Explanation:

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