At 1/10 MPS² (The ² is the proper way) it would take way longer to travel 10m than at 1/2 MPS² Look at the problem. If you go 1/10 of a meter in a second, then do 10/(1/10) [Divide 10 by your MPS] to get 100. It would take 100 seconds to travel 10m at 1/10 MPS². At 1/2 MPS² [10/(1/2)] It would take 20 seconds.
Hope This Helps!
-A