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KatClaire
A book slides down a 33.0 degree slope under its own weight. The coefficient of kinetic friction between the book and the slope is 0.300. What is the acceleration of the book?
You wont need the mass as it cancels. Work out the normal force by resolving mg in the opposite direction to it. Then you need: F = resultant force down slope:\[F = ma = mg \sin \theta - \mu m g \cos \] All the masses cancel, and you can plug in numbers to get a. Good luck.