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If impulse `I` varies with time `t` as `F(kg ms^(-1))= 20t^2 - 20t`. The change in momentum is minimum at
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Mar 19, 2022
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11th Physics
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If impulse `I` varies with time `t` as `F(kg ms^(-1))= 20t^2 - 20t`. The change in momentum is minimum at ..............
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(a) `t=2s` (b) `t = 1s` (c) t=1/2s` (d) `t= 3/2s`
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