The motion of a particle is described by the equation $x = a + bt^{2}$ where $a = 15\ cm$ and $b = 3\ cm/s^{2}$.Its instantaneous velocity at time $3\ sec$ will be

Question

Dr. Abubacker · Accepted Answer

(b) $x = a + bt^{2},\ v = \frac{dx}{dt} = 2bt$
Instantaneous velocity $v = 2 	imes 3 	imes 3 = 18\ cm/sec$

Q. The motion of a particle is described by the equation $x = a + bt^{2}$ where $a = 15\ cm$ and $b = 3\ cm/s^{2}$.Its instantaneous velocity at time $3\ sec$ will be

Explanation

Reviewed by Dr. Abubacker

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