Answer Happy

A 900 kg car travelling at 12 m/s due east collides with a 600 kg car travelling at 24 m/s due north. As a result of the collision, the two cars lock together and move in what final direction? (K:1) Select one: O a. 63 N of E O b. 53°N of E O c. 69°N of E O d. 45° N of E