Wednesday
September 17, 2014

Homework Help: physics help

Posted by Stan on Tuesday, September 28, 2010 at 4:20pm.

A woman is pushing a sofa at constant speed of 1.0 m/s on a horizontal surface. She exerts a horizontal force of 80 N in the direction of motion.
A) how can the sofa move at constant speed without Newton's first law being violated?

B)Approximately how hard would the woman have to push to keep the sofa moving at a constant speed of 2.0 m/s? explain

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