Question

A body, initially at rest, starts moving with a constant acceleration $2m/s^2$ . Calculate the velocity acquired in 5s.

Answer 1

Given,
As the body starts from rest,
So, Initial Velocity, $u=0$ m/s
Constant acceleration, a$=2\text{m}/{\text{s}}^2$
Time, t$=5$ s

For constant acceleration apply equation of motion, $v=u+at$

v$=0$ m/s+ $2\text{m}/{\text{s}}^2\times 5$ sec$=10$ m\s

The velocity acquired by the body in $5$ s is $10$ m/s.