a police van moving on a highway with a speed of 30km 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 ms^-1,with what speed does the bullet hit the thief's car?
the vehicles are moving apart at 162 km/h (192 - 30)
convert to m/s , then subtract from the muzzle velocity