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August 29, 2015

Homework Help: physics

Posted by Emily Tran on Sunday, November 18, 2012 at 10:17pm.

A crate with a mass of 110 kg glides through a space station with a speed of 2 m/s. An astronaut speeds it up by pushing on it from behind with a force of 240 N, continually pushing with this force through a distance of 4 m. The astronaut moves around to the front of the crate and slows the crate down by pushing backwards with a force of 230 N, backing up through a distance of 3 m. After these two maneuvers, what is the speed of the crate?


final speed =_________ m/s

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