Question

An object moves in such a way that its displacement s, in metres, from a fixed point at time t, in seconds, is given by

s= (3+t-t^2)^(2/3)
for 0 <= t <= 2.

(a)Find an expression for the velcity of the object at time t?

(b) What is the time when the object is instantaneously at rest?

(c) what is the displacement of the object when it is instantaneously at rest?