Solución

r(t)=(1mcost+c+1m)i+(sentm+(v0+1m)t)j\bold{r}(t) = \bigg(\frac{-1}{m}cost + c+ \frac{1}{m}\bigg)\bold{i} + \bigg(\frac{-sent}{m}+ \bigg(v_0 + \frac{1}{m}\bigg)t\bigg)\bold{j}