Question

position of a particle is time dependent and is given by x=3t(2)-t+7 find instantaneous velocity of the particle ar r=3 sec​

Answer 1

If position is given by the equation

X = 3t² - t + 7

then to derive the equation for velocity, we differentiate the equation with respect to t, and we get...

v = 6t - 1

now at (t = 3 sec)

v = 6(3) - 1

v = 18 - 1

v = 17 m/s

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