Question:
The equation of motion of a particle started at $\mathrm{t}=0$ is given by $x=5 \sin (20 t+\pi / 3)$ where $\mathrm{x}$ is in centimeter and t in second. What does the particle
(a) first come to rest.
(b) First have zero acceleration.
(c) First have maximum speed?
Solution:
