Question

Does
the man
of a body depend
on a
place?​

Answer 1

Explanation:

The position of centre of mass of a body depends on shape, size and distribution of mass of the body. The centre of mass does not lie necessarily at the centre of the body. Many objects have a point,a line or a plane of symmetry. The centre of mass of such an object then lies at that point, on that line or in that plane. Also the centre of mass of an object need not lie with in the object, like no iron at the centre of mass of a horse shoe.

Answer 2

Answer:

Work done depend upon the change in velocity of the body. If there is no change in velocity , ( constant velocity), no work is done either on the body or by the body. Any object moves with constant velocity, only when the net force acting on the body is zero

Explanation:

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