Question

3.14 Physics
3. A particle moves along a straight line such that its
displacement at any time t is given by S = t^3 -6t^2+2t+4 meters . The velocity when the acceleration is
zero is
(b)-12 ms-
(a) 2 ms-
(d) -10 ms-
(c) 42 ms-

please explain this step by step
It's urgent
​

Answer 1

Answer:

-10m/s

Explanation:

• ds/dt=v.dv/dt=a.