Hi;

A car accelerates from rest at a constant rate of 2m/s^2. For 5 seconds, What is the speed of the car after 5 seconds?

The part I'm finding difficult is the formula part 2m/s^2.

ie for the first second its speed is 2/1^2 = 2 metres.

for the second second I get 2/2^2 = 2/4 = 0.5, How would I get 4 metres?

Thanks.