How Fast Do Asteroids Travel?

Answer

At the outer space, an asteroid can travel at the speed of 1,000 miles per hour. As it gets closer to the Earth, the pull of gravity will effect how fast asteroids travel. Asteroid will increase its speed from 2,500 miles per hour up to 50,000 miles per hour.
Reference:
1 Additional Answer
How fast an asteroid travels depends on the asteroid, its size, and its point of origin. Not many larger asteroids have been studied so there are not many comparisons in space. Once they hit the atmosphere they travel at 32 feet per second per second. You can find more information here: http://science.nationalgeographic.com/science/space/solar-system/asteroids-comets-article.html
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