I have the following question,

A car starts from rest and moves in a straight line in the manner descibed below:

Period 1 0 to 4s the acceleration is non uniform i.e after 1s the aceleration is 1m/s after 2 secs the aceleration is 2m/s

period 2 t=4-6 the velocity is constant

period 3 from t=6-10 the car brakes uniformly to rest

calculate the total distance the car travelled after 10 secs

I can work out period 2 and 3 but theres nothing in my book about non uniform acceleration.

any help you can give would be appreciatted