A car takes 11 s to go from v=0m/s to v = 22 m/s at constant acceleration.

Question

If you wish to find the distance traveled using the equation d=1/2at2, what value should you use for a?
Express your answer to two significant figures and include the appropriate units.

please help me on the units

Answer 1

think about it. If it takes 11 seconds for the speed to go from 0 to 22, clearly, the speed grows by 2 each second.

So, a = (2m/s)/s = 2 m/s^2