Question

The displacement of a particle starting from rest (t=0) is given by s=6t²-t³. the time in seconds at which the particle will attain zero velocity is (a) 2 (b) 4 (c) 6 (d) 8 ​

Answer 1

Answer:t = 0 or 4 seconds

Explanation:

v = ds/dt

v = 12t-3t^2

3t(4-t)=0

thus t = 0 or 4 seconds