position of center of mass is effected by a)external force b)internal force c) both d)none of these
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external force
(a) us correct option
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Answer:
c) Both
Explanation:
A) The position of centre of mass of a system is dependent on the choice of co-ordinate system. (B) Newton's second law of motion is applicable to the centre of mass of the system. (C) When no external force acts on a body, the acceleration of centre of mass is zero.
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