The point at which total mass of a body ...

The point at which total mass of a body is suppose to be concentrated is known as

Dead centre

Centre of mass

Centre of gravity

Centre of motion

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The centre of mass of a body or a system of particles is defined as single point at which the whole mass of the body or system is imagined to be concertratedand all the applied forces acts at that moves when forces are applied on the body.

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A point at which the whole mass of the body is supposed to be concentrated in order to studt the motion of an external force in accordance with Newton's laws of motion is

Statement-1: The centre of mass of body may lie where there is no mass. Statement-2: Centre of mass of a body is a point, where the whole mass of the body is supposed to be concentrated.

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(1) Centre of gravity (C.G.) of a body is the point at which the weight of the body acts, (2) Centre of mass coincides with the centre of gravity if the earth is assumed to have infinitely large radius, (3) To evaluate the gravitational field intensity due to any body at an external point, the entire mass of the body can be cosidered to be concentrated at its C.G.., (4) The radius of gyration of any body rotating about ab axis is the length of the perpendicular dropped from thr C.G. the body to the axis. which one of the following paries of statements is correct ?

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The point at which total mass of a body is suppose to be concentrated is known as

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