Problem 63E

The equation of motion of a particle is $s=t^{3}-3 t$, where $s$ is in meters and $t$ is in seconds. Find

(a) the velocity and acceleration as functions of $t$,

(b) the acceleration after $2 \mathrm{~s}$, and

(c) the acceleration when the velocity is $0 .$

 

Step-by-Step Solution