A meteor whose mass was about 1.8×108 kg struck the Earth (mE=6.0×1024 (kg) with a speed of about 25 km/s and came to rest in the Earth.?
Part A) What was the Earth's recoil speed (relative to Earth at rest before the collision)?
Express your answer using two significant figures.
Part B) What fraction of the meteor's kinetic energy was transformed to kinetic energy of the Earth?
Express your answer using two significant figures.