The distance travelled by a particle in time `t` is gicen by `s=t^3-2t^2-3t+5`. The velocity of the particle when `t=2` sec is

The distance travelled by a particle in time t is given by s=10t-7t^3 . The maximum velocity is

The distances moved by a particle in time t seconds is given by s=t^(3)-6t^(2)-15t+12 . The velocity of the particle when acceleration becomes zero, is

The distances moved by a particle in time t seconds is given by s=t^(3)-6t^(2)-15t+12 . The velocity of the particle when acceleration becomes zero, is

The distance travelled s in metres by a particle in t second is given by s=t^(3)+2t^(2)+t . The speed of the particle after 1s will be

If the distance s travelled by a particle in time t is given by s=t^2-2t+5 , then its acceleration is

If the distance S travelled by a particle in time t is given by s = t^(2) - 2t + 5 then its acceleration is