Solution: A meteorite enters the Earth’s atmosphere with a mass of 12 million kg and a speed of 19 km/s. What is the kinetic energy of the meteorite when it enters the Earth’s atmosphere? After moving through the atmosphere, the meteorite hits the ground with a mass of 6 million kg and a speed of 12 km/s. What is the amount of work done by air resistance to slow down the meteorite?

A meteorite enters the Earth’s atmosphere with a mass of 12 million kg and a speed of 19 km/s. What is the kinetic energy of the meteorite when it enters the Earth’s atmosphere? After moving through the atmosphere, the meteorite hits the ground with a mass of 6 million kg and a speed of 12 km/s. What is the amount of work done by air resistance to slow down the meteorite?