Question

A body starts with an initial velocity of 10 $m{s}^{-1}$ and accelerates with 5 $m{s}^{-2}$. Find the distance covered by it in 5 sec.

Answer 1

Given,

$u=10m/s$

$a=5m/s^2$

$t=5sec$

From $2^{nd}$ equation of motion,

$S=ut+\frac{1}{2}a{t}^2$

$S=10\times 5+\frac{1}{2}\times 5\times 5\times 5$

$S=50+62.5$

$S=112.5m$