Originally Posted By: paul

Originally Posted By: kallog
0.5 second d = .25m , v=0.5m/s , a = 1m/s/s real life


that would be a displacement of 0.125 meters not 0.25 meters


Yes!!!! I can hardly believe you worked that out.

And we still have 1m/s/s acceleration even at t=0.5s.

You can do it for even sooner times like 0.1s, or 0.01s, and you can still use a=1m/s/s. There's no need for a to gradually increase over a whole second.