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Darthsparerib
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Homework Statement
You push an object of mass slowly, partway up a loop-the-loop track of radius , starting from the bottom, where the normal force to the track is vertically upward, and ending at a point a height above the bottom. The coefficient of friction between the object and the track is a constant .Find the work you do against friction.
Homework Equations
Work against friction= Friction Force x DisplacementThe Attempt at a Solution
Not how to get the height of the car. I believe that the friction part would simply be (Kinetic Friction)x(Normal Force). But I'm not entirely sure about how to get the normal force either