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The kinetic energy K of a particle moving in a straight line depends on the distances as K =as^2. The force acting on the particle is (where a is a constant) |
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Answer» Solution :Here kinetic energy `K = 1/2 mv^2 = as^2` `:. mv^2 = 2as^2` Differentating EQN .(i) w.r.t TIME t, we get `2 mv (dv)/(dt) = 4as (DS)/(dt) = 4 asv" or " m (dv)/(dt) = 2as` . |
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