Question

An automobile accelerates uniformly from rest at 25m/s while travelling 100m. What is the acceleration?

Answer 1

625÷200

=3.125

acceleration=3.12

Answer 2

Answer:

Explanation:

u=0, v=$25ms^{-1}$, S=100m, a=?

$v^{2} = u^{2}$ + 2aS

$25^{2} = 0$ + 2a(100)

625 = 200a

a = $\frac{625}{200}$ = 3.125$ms^{-2}$

Therefore, Acceleration of the automobile is 3.125$ms^{-2}$.