\
The equation of motion of a particle .
(a)
\The velocity of a particle is differentiation of the equation of motion.
\Velocity of the particle as a function of is
.
The acceleration of a particle is differentiation of velocity.
\Acceleration as a function of is
.
\
(b)
\The acceleration after 1 seconds:
\Find the acceleration at sec.
The acceleration after 1 seconds .
\
(c)
\Graph:
\Graph the velocity and acceleration as functions of on the same screen.
\
(a) and
.
(b) The acceleration after 1 sec is .
(c) Graph:
\.