14. [2pt]
A 1290 kg Triumph TR-8 traveling north at 42.1 km/hr crashes head-on into a 1980 kg Checker cab moving west at 84 km/hr. The two cars become tangled together. What is their speed a moment after the collision?
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15. [2pt]
If east is 0º, north is 90º, etc., at what angle are the entangled cars traveling just after their collision?
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