1. The problem statement, all variables and given/known data http://img487.imageshack.us/img487/5702/untitledna1.png [Broken] 2. Relevant equations v square = u square + 2as 3. The attempt at a solution a) Let v square - u square be x delta x/x = 2(delta v/v) + 2(delta u/u) delta x/300 = 0.03 delta x = 9 b) i) a = (v square - u square)/2s delta a/a = 2(delta v/v) + 2(delta u/u) + deltas/s delta a/3 = 0.03 + 0.002 delta a = 0.096 = 0.1 (round off to 1 sig fig) ans : 3.0 plus minus 0.1 1. The problem statement, all variables and given/known data I think I did it correctly, but my answers seem to be wrong , because this is a question on my school website and I have to key in the answers and it'll tell me whether it is right or wrong. I thought maybe I did something wrong, so maybe somebody could help please?