Q1-A truck with initial velocity 6 m/s^-1 brakes and comes to rest. At time t seconds after the brakes are applied with acceleration a m/s^-2 where a=-3t. This formula applies until the truck halts.

1: Find time taken for the truck to halt.

2:Find distance traveled whilst decelerating.

3:Find greatest deceleration of truck?

Q2-A force of (36-t^2) newtons acts at time t seconds on a particle of mass 1kg. When t=0 the particle has velocity 2m/s^-1 in the direction of the force. Find the velocity of the particle when t=6 and find the distance travelled between t=0 and t=6.

Could somebody please help me out, been stuck for ages Many thanks in advance.