Suppose that a girl exerts a 6

timer Asked: Dec 7th, 2015

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Suppose that a girl exerts a 63-N horizontal force as she pulls a 78-N sled across a cement sidewalk at constant speed. The coefficient of kinetic friction is now only 0.18. If a person weighing 712 N sits on the sled, what force is needed to pull the sled across the snow at constant speed?

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