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Mass, Acceleration and Gravity

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A plane is 45 degrees to the horizontal with a stationary mass on it. The mass is 12 kg and the acceleration of gravity is 9.8 m/s^2.

What is the magnitude of the force of friction required to keep the mass from moving?

Answer with the number of Newtons using digits.

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This solution includes a brief explanation and a simple calculation to find the answer.

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