how do you do this question because im pretty sure its kinematics "a body is moving in a straight line which passes through a fixed point O. the displacement s metres of the body from O at time t is given by s=t(cubed)+4t(squared)-5t. (a) find the expression for the velocity, vm/s at time t seconds. (b) find the acceleration after 2 seconds. i think it pretty hard
this is question is in paper 3H may 2004