Question

A body is moving with an initial velocity of $u$ and having constant acceleration $a$. The final velocity $v$ can be obtained by using which of the following equation of motion if a body covers a distance $s$.

• A. $v^2=u^2+2as$
• B. $s=ut+\frac{1}{2}a{t}^2$
• C. $v^2=u^2+at$
• D. $v=u+at$

Answer 1

The correct option is A

$v^2=u^2+2as$

Given, acceleration$=a$, initial velocity$=u$, and distance travelled$=s$.

We can get the final velocity $v$ by using the third equation of motion, $v^2=u^2+2as$.