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Mathematics 15 Online
OpenStudy (agentjamesbond007):

A book with a mass of 2.0 kg is held in equilibrium on a board with a slope of 60.0° by a horizontal foce. What is the normal force exerted on the book?

OpenStudy (anonymous):

I guess it is 10N

OpenStudy (agentjamesbond007):

I got that answer too, but the answer choices are only 39N, 61N, 15N, or 34N

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