19. A 1950 kg police car going 12.5 m/s rear-ends a 1500 kg sedan moving at 3.0 m/s.  After the collision, the two cars move together as one unit.  Based on the problem, 12.5 m/s can be represented by which of the following variables, assuming that the mass of the police car is represented by the variable mA? Group of answer choices vB’ No answer vB vA vA’

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Q: 37. A 1950 kg police car is hoing 12.5 m/s rear-ends a 1500 kg sedan moving 3.0m/s. After the…

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