Question

find the attachment lovelyy peepss!!!

Answer 1

Answer:

dx/dt gives velocity..

dx/dt=d/dt(t^3-3t^2+2)

v=3t^2-6t.....(i)

a=dv/dt

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

a=6t-6

since, acc.is zero..

6t-6=0

6t=6

t=1sec

put t=1 in eq(i).

v=3t^2-6t

v=3-6

v=-3m/s

vel. cannot be negative.

v=3m/s