A meteor whose mass was about 2.0 X 10 8 kg struck the Earth (m E = 6.0 X 10 24 kg) with a speed of.

A meteor whose mass was about 2.0 X 108kg
struck the Earth (mE = 6.0 X 1024kg) with a speed of about
25km/s and came to rest in the Earth, (a) What was the Earth’s recoil speed
(relative to Earth at rest before the collision)? ( b ) What fraction of the
meteor’s kinetic energy was trans formed to kinetic energy of the Earth? (c) By
how much did the Earth’s kinetic energy change as a result of this collision?