if 'm' is the mass of a body,'v' its velocity and 'p' momentum then write a relationship between change in momentum,mass and velocity of the body when i)'v' is almost equal to 'c'.the velocity of light.ii)'v' is very less as compared to'c' the velocity of light.
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p=MV where m is the mass of body
and V,is its velocity
and p directly proportional to the v.
therefore dv÷dt=dp÷dt
and V,is its velocity
and p directly proportional to the v.
therefore dv÷dt=dp÷dt
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