A police van moving on a highway with a ...

A police van moving on a highway with a speed of `30 "km h"^(-1)` fires a bullet at a thief's car speeding away in the same direction with a speed of `192 "km h"^(-1)` . If the muzzle speed of the bullet is `150 "m s"^(-1)`, The speed with which the bullet hit the thief's car is

42m/s

105m/s

145m/s

180m/s

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