Question

A body accelerates from rest and attains a velocity of 10 ms-1 in 5 s. What is its acceleration?

Answer 1

Answer:

$2\ m/s^2$

Explanation:

Given:

• Initial velocity of the body, $u = 0\ m/s$.

• Final velocity of the body after 5 s, $v = 10\ m/s$.

Let the acceleration of the body be $a$.

Using the relation,

$v=u+at$

where, $t=5\ s$,

$10=0+(a\times 5)\\a=\dfrac{10}{5}=2\ m/s^2.$