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Answer to Question #68890 in Mechanics | Relativity for Becca

Question #68890
Our Addition Problem this week will deal with an asteroid the "size of Texas" heading our way. Our asteroid is heading toward earth at 22,000 mph with a mass of 6.2 x 1021 kg. Instead of a misfit crew of oil drillers we send a small intrepid spacecraft to nudge it off course. After setting down on the asteroid it will give a constant force of 5.0 N. We only need to change the velocity of the asteroid by 0.30 cm/s to have it miss the Earth. How long must the force act on the asteroid to avert disaster?
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