The displacement of a particle starting from rest (at t = 0) is given by s=6t2t3. The time in seconds at which the particle will attain zero velocity again, is  

(1) 2

(2) 4

(3) 6

(4) 8

Concept Videos :-

#13-Graphical-Meaning-of-Instantaneous
#14-Solved-Examples-7
#12-Instantaneous-Velocity

Concept Questions :-

Instantaneous speed and instantaneous velocity

(2) v=dsdt=12t3t2

Velocity is zero for t=0 and t=4sec   

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