Homework Help: physics

Posted by Kim on Monday, October 4, 2010 at 6:17pm.

A 120 kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 400 N. For the first 17 m the floor is frictionless, and for the next 17 m the coefficient of friction is 0.34. What is the final speed of the crate?

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