Question

A body moving with uniform acceleration $8m{s}^{-2}$ starts from rest. The distance covered by it in fifth second will be

• A. $8m$
• B. $64m$
• C. $4m$
• D. $36m$

Answer 1

The correct option is D $36m$

Given that,

The acceleration $a=8m/s^2$

Initial velocity $u=0m/s$

We know that,

The displacement in the nth second

$=u+a(n-\frac{1}{2})$

Now, the displacement in 5th second

$=0+8(5-\frac{1}{2})$

$=36m$

Hence, the distance covered by it in fifth second is $36m$