A 46.0-kg crate, starting from rest, is pulled across
Chapter 7, Problem 7.66(choose chapter or problem)
A 46.0-kg crate, starting from rest, is pulled across afloor with a constant horizontal force of 225 N. For the first11.0 m the floor is frictionless, and for the next 10.0 m thecoefficient of friction is 0.20. What is the final speed of thecrate after being pulled these 21.0 m?
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