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  • (a) Centre of gravity (C.G.) of a body is the point at which the weight of the body acts (b) Centre of

(a) Centre of gravity (C.G.) of a body is the point at which the weight of the body acts

(b) Centre of mass coincides with the centre of gravity if the earth is assumed to have infinitely large radius

(c) To evaluate the gravitational field intensity due to a body at an external point, the entire mass of the body can be considered to be concentrated at its C.G.

(d) The radius of gyration of a body rotating about an axis is the length of the perpendicular dropped from the C.G. of the body to the axis

Which one of the following pairs of statements is correct?

Option: 1

(d) and (a)


Option: 2

(a) and (c)


Option: 3

(b) and (c)


Option: 4

(c) and (d)


Answers (1)

best_answer

a)Center of gravity is the point where weight acts.

(b)Center of mass coincides with center of gravity in the case where mass density is uniform.

(c)Gravitational field at any extreme point can be calculated,assuming it to be a point mass.

(a) and (c) are correct

Posted by

Divya Prakash Singh

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