The displacement (in metre) of a particle moving along x-axis is given by x=18t+5t². Calculate (i) the instantaneous velocity t=2s (ii) average velocity between t=2s to t=3s (iii) instantaneous acceleration.

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TextInstantaneous Velocity in Motion

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If t=√x + 4, then (dx/dt) at t=4 is

The position coordinate of a moving particle is given by x=6+18t + 9t²(Where x is in meters and t is in seconds) what is the velocity at t=2 second?