An automobile accelerates at 4 m/#s^2# from 20 m/s to 36 m/s. How long did that acceleration take?
According to the given information,
acceleration 'a' = 4 m/
initial velocity 'u' = 20 m/s
final velocity 'v' = 36 m/s
Now, I have to find how long the acceleration of the automobile takes place.
refer that 't' is time taken
value of 't' comes out to be 4 s.