Question

Two particies of equal mass are moving along the same straight line with the same speed in opposite direction. What is the speed of the centre of mass of the system​

Answer 1

Answer:

zero

Explanation:

Here as no any external force is mentioned..

i.e. the spheres are moving under mutual gravitational force of attraction between them..

it is force internal to the system and not external force..

hence center of mass will have zero velocity..

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