Question

An object starts from rest with constant acceleration 4m/s after 8 second its speed is?

Answer 1

I think this is the correct answer

Answer 2

Given,

u=0m/s

a=4m/s^2

&t =8sec

We have ,

a= (v-u)/t

4= (v-0)/8

v-0=4×8

v= 32m/s

Hence the speed of the object is 32m/s