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  • 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, with what speed does the bullet hit the thief’s

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, with what speed does the bullet hit the thief’s car?

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eginarrayl ext Speed of police van = 30 km / h =30 imes frac518=frac253 m / s\ \ ext Speed of thief =192 km / h =192 imes frac518=frac1603 m / s\ \ ext Speed of bullet when it is fired =frac253+150=frac4753 m / s\ \ ext Relative speed of bullet wrt thief =frac4753-frac1603=frac3153=105 m / s endarray

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Deependra Verma

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