Part A What was the Earth's recoil speed? Part B What fraction of the meteor's kinetic energy was transformed to kinetic energy of the Earth? Part C By how much did the Earth's kinetic energy change as a result of this collision? Part B What fraction of the meteor's kinetic energy was transformed to kinetic energy of the Earth? Part C By how much did the Earth's kinetic energy change as a result of this collision? Part C By how much did the Earth's kinetic energy change as a result of this collision? A meteor whose mass was about 1.910^8 kg struck the Earth (mE = = 6.0 x 10^ 24 kg) with a speed of about 16 km/s and came to rest in the Earth. Part A What was the Earth's recoil speed? Part B What fraction of the meteor's kinetic energy was transformed to kinetic energy of the Earth? Part C By how much did the Earth's kinetic energy change as a result of this collision?
Explanation / Answer
conservatin of momentum A . 1.9 e 8 * 16 = ( 1.9 e 8 + 6 e24 ) V V = 5.06 e -16 km / s