what is the acceleration of a car going from 4m/s to 14m/s in 5 seconds

Question

I completely forgot how to work out acceleration ! im hoping I can get help

Answer 1

The definition of acceleration is the change in velocity over change in time, or Δv/Δt.

 

For this problem, you will find average acceleration over the time interval:

 

This means take (v_f - v_i)/(t), which will give you an answer of 2ms^-2.