Question

a body starts from rest and acquires a velocity 45m/s in 3 s, find the acceleration

Answer 1

Explanation:

Acceleration = Change in velocity per unit time.

Therefore, Acceleration a=

apply the formula you will get it

Answer 2

GIVEN,

INITIAL VELOCITY (u)=0m/s

FINAL VELOCITY (v)=45m/s

AND, TIME (t)=3s

THEREFORE, ACCELARATION (a)=(v-u)/t

=(45-0)m/s÷3s=15m/s^

ACCELARATION =15m/s^

HOPE IT HELPS YOU ☺.