Two bodies A and B of same mass are moving with velocities v and 3v.Compare the force needed to stop them in the same time. in terms of ratio.
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(a) Inertia is the tendency of a body to remain in fact of motion or remain static until and unless an external force acts on the body and since it depends on mass of body hence M1: M2 = 1:1 .
(b) The momentum of a body is also called as mass that is in motion if a body has mass and is moving it will definitely have momentum so M1V:M2V ⇒ 1:3 .
(c) Force on a body is also defined as Momentum per unit time hence, M1V/T : M2V/T = 1:3.
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