Step 1:
\The velocity function is
,
.
(a)
\Find displacement.
\The velocity is defined as change in displacement over a change in time.
\
.

Displacement of the particle is
.
Step 2:
\(b)
\Find distance.
\To find the total distance, velocity is negative from 0 to
where velocity is positive from
to 3
The total distance of the particle over the interval
.
The total distance 

The total distance of the particle is
.
Solution :
\(a) Displacement of the particle is
.
(b) The total distance of the particle is
.