A car moving to the East speeds up from rest to 8 m/s in 2 s. What is its acceleration?

to the East speeds up from rest to 8 m/s in 2 s. What is its acceleration

solution:

      Given,

initial velocity(u)= 0m/s

final velocity(v)= 8m/s

time(t)= 2s

acceleration(a)=?

Now,

       a= v-u/t

  or, a= 8-0/2

  or, a= 8/2

  or, a= 4

Its acceleration is 4m/s square.

power out to power in less than 100%