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April 25, 2015

Homework Help: physics

Posted by lili on Tuesday, November 27, 2012 at 10:08am.

An astronaut throws a wrench in interstellar space. How much force is required to keep the wrench moving continuously with constant velocity?

Select one of the options below as your answer:



A.
a force equal to its weight on Earth




B.
a force equal to zero




C.
a force equal to half of its weight on Earth




D.
a force equal to double its weight on Earth

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