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A boy pushes on a 4.50-kg sled with a force of 10.0 N at 52.0 angle with respect to the horizontal surface of a

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A boy pushes on a 4.50-kg sled with a force of 10.0 N at 52.0 angle with respect to the horizontal surface of a frozen pond. The sled moves with constant velocity. What is the normal force acting on the sled? (Answer must be in newtons).

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