Physics

Problem

2.14 A police van moving on a highway with a speed of

30 \mathrm{~km} \mathrm{~h}^{-1}

fires a bullet at a thief's car speeding away in the same direction with a speed of

192 \mathrm{~km} \mathrm{~h}^{-1}

. If the muzzle speed of the bullet is

150 \mathrm{~m} \mathrm{~s}^{-1}

, with what speed does the bullet hit the thief's car? (Note: Obtain that speed which is relevant for damaging the thief's car).