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A particle is moving on a straight line with velocity (v) as a function of time (t) according to relation `v = (5t^(2) - 3t + 2)m//s` . Now give the answer of following questions : Velocity of particle when acceleration is zero is :A. `1 m//s`B. `(35)/(20)m//s`C. `(31)/(20)m//s`D. `38m//s` |
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Answer» Correct Answer - C Velocity of ……………. `a = 10t - 3 = 0` `t = (3)/(10)` `V = ((3)/(10))(2)/(3)` `V_((t= 3//10))= 5((3)/(10))^(2)-3 ((3)/(10))+2 = (31)/(20)m//s` |
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