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April 19, 2014

Homework Help: physics

Posted by Natasha on Sunday, February 26, 2012 at 9:06pm.

A steroid is moving along a straight line. A force acts along the displacement of the asteroid and slows it down. The asteroid has a mass of 4.5e4kg and the force causes the speed to change from 7100 to 5500m/s. (A) What is the work done by the force? (B) If the asteroid slows down over a distance of 1.8e6m determine the magnitude of the force.

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