The displacement of a particle starting from rest $(at\ t = 0)$ is given by $s = 6t^{2} - t^{3}.$ The time in seconds at which the particle will attain zero velocity again, is

Question

Dr. Abubacker · Accepted Answer

(b) $v = \frac{ds}{dt} = 12t - 3t^{2}$
Velocity is zero for $t = 0\ $and $t = 4\ \sec$

Q. The displacement of a particle starting from rest $(at\ t = 0)$ is given by $s = 6t^{2} - t^{3}.$ The time in seconds at which the particle will attain zero velocity again, is

Explanation

Reviewed by Dr. Abubacker

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