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A stationary box of mass 9.5 kg is being pushed by a force 12.9 N at...

A stationary box of mass 9.5 kg is being pushed by a force 12.9 N at an angle θ = 31.2o with respect to the horizontal. The coefficient of static friction between box and surface is μs= 0.30. Calculate the magnitude of the MAXIMUM POSSIBLE static friction force which can be generated, to 2 s.f.

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