what is the minimum speed with which a meteor strikes the top of earth
What is the minimum speed with which a meteor strikes the top of Earth's stratosphere (about 41.0km above the surface), assuming that the meteor begins as a bit of interplanetary debris far from Earth and stationary relative to Earth? Assume that the drag force is negligible until the meteor reaches the stratosphere. Mass of Earth is 5.974 × 1024 kg; radius of Earth is 6.371 × 106 m; and gravitational constant is 6.674 x 10-11 N-m²/kg².
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