Question

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

• A. $10m{s}^{-1}$
• B. $0m{s}^{-1}$
• C. $5m{s}^{-1}$
• D. $2.5m{s}^{-1}$

Answer 1

The correct option is A $10m{s}^{-1}$

$u=0,a=2m/s^2,t=5s$
Putting the values in $v=u+at$
$v=0+2\ast 5=10m/s$