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April 20, 2014

Homework Help: physics

Posted by Anonymous on Thursday, October 31, 2013 at 1:06am.

Scientists are experimenting with a kind of gun that may eventually be used to fire payloads directly into orbit. In one test, this gun accelerates a 4.8-kg projectile from rest to a speed of3.9 103 m/s. The net force accelerating the projectile is 4.8 105 N. How much time is required for the projectile to come up to speed?

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