Question

The displacement of a particle starting from rest is given by y=6t²-t³. The time in second at which the particle will attain zero velocity is

Answer 1

Answer:

2s

Explanation:

velocity=ds/dt

0=d(6t^2-t^3)/dt

0 =12t-3t^2

3t^2=12

t^2=12/3

t^2=4

t=2 s