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You are pushing a box up an inclined ramp. The force you exert on the box is 19·N up the ramp. The weight of the box is 100·N straight downward. The force friction exerts on the box is 8·N down the ramp. The normal force exerted on the box by the ramp is 50·N upward and at an angle, perpendicular to the ramp.

What is the magnitude of the force exerted by the box on you?

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