At t = 0, a body of mass 100 g starts moving under the influence of a force (5i^+10j^) N(5 \hat{i} + 10 \hat{j}) \,\mathrm{N}(5i^+10j^)N . After 2s its position is (2xi^+5yj^) m(2x \hat{i} + 5y \hat{j}) \,\mathrm{m}(2xi^+5yj^)m. The ratio x:yx:yx:y is
1 : 2
2 : 5
5 : 2
5 : 4