A mule uses a rope to pull a box that weighs 30 x 10 2 n, Ask an Expert

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A mule uses a rope to pull a box that weighs 3.0 x 10^ 2 N across a level surface with constant velocity . The rope makes an angle of 30.0 degrees above the horizontal, and the tension in the rope is 100N. What is the normal force of the floor on the box?

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