A 900-Kg Car Traveling East at 15 $45,0 ^ { \circ } \mathrm { N } \text { of } \mathrm { E }$

A 900-kg car traveling east at 15.0 m/s suddenly collides with a 750-kg car traveling north at 20.0 m/s. The cars stick together after the collision. In what direction does the wreckage move just after the collision?

A) $45,0 ^ { \circ } \mathrm { N } \text { of } \mathrm { E }$
B) $48.0 ^ { \circ } \mathrm { N } \text { of } E$
C) $36.9 ^ { \circ } \mathrm { N } \text { of } E$
D) $42.0 ^ { \circ } \mathrm { N } \text { of } \mathrm { E }$
E) $53.1 ^ { \circ } \mathrm { N } \text { of } \mathrm { E }$