The displacement (in metre) of a particl...

The displacement (in metre) of a particle moving along x-axis is given by `x=18t +5t^(2). Calculate (i) the instantaneous velocity `t=2 s` (ii) average velocity between `t=2 s` to `t=3 s` (iii) instantaneous acceleration.

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The displacement (in metre) of a particle moving along x-axis is given by x=18t+5t^2.Calculate (i) the instantaneous velocity at t=2s.

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