A 60.0 kg crate, starting from rest, is pulled across the floor with a constant force of 100.0 N. For the first 10.0 m the floor is frictionless and for the next 10.0 m the coefficient of friction is 0.20. What is the final speed of the crate?(adsbygoogle = window.adsbygoogle || []).push({});

Is it possible to use KE + PE = KE + PE

1/2mv^2 + mgh = 1/2mv^2 + mgh

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# Homework Help: Work and Energy Problem

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