How did you do it? I'm having some trouble on this question. This is what I got
a = (6t^2)/5
v = (2t^3)/5
x = (t^4)/10
9.5m/s = ((2N/s^2)t^3)/5kg
47.5N/s = (2N/s^2)t^3
23.75s=t^3
2.87s I'm not sure if the units are right here
then I use that in the x equation
x = (2.87s)^4/10 = 6.83 m? not...