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The point where whole weight may be assumed to act is called ___________

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The point where whole weight may be assumed to act is called ___________

(a) Centre of mass

(b) Centre of weight

(c) Centre of gravity

(d) Centre of acceleration

I got this question during an online interview.

My question is based upon Forces and Inertia topic in portion Gravitation of Engineering Physics I

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Correct choice is (c) Centre of gravity

Explanation: The centre of mass of body is point where whole mass of the body may be assumed to be concentrated for describing its translator motion. On the other hand, the centre of gravity is a point at which the resultant of gravitational forces on all particles of the body acts.

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