Two-Dimensional Inelastic Collision
A 2000 kg car moving east at 15 m/s collides with a 1500 kg car moving north at 20 m/s. The cars lock together upon impact. What is the magnitude of their common velocity immediately after the collision?
A
17.1 m/s
B
12.2 m/s
C
8.6 m/s
D
11.4 m/s
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