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AP Physics 1
2.7 Kinetic and Static Friction
2.5 Newton’s Second Law
2.2 Forces and Free-Body Diagrams
IntermediateMCQMathematical16.9k
A right triangular wedge with its vertical leg on the left, horizontal base at the bottom, and hypotenuse sloping downward to the right. The angle between the incline and the horizontal base at the lower-right vertex is marked with an arc and labeled \(\theta\). A solid rectangular block rests on the inclined face of the wedge. An arrow labeled \(F\) points diagonally downward and to the right, perpendicular to the inclined face and directed directly at the top surface of the block. No other labels, lines, text, or axes appear.
A block of mass \(m\) on an incline of angle \(\theta\) held by perpendicular force \(F\).
A force \(F\) is used to hold a block of mass \(m\) on an incline as shown in the diagram above. The plane makes an angle of \(\theta\) with the horizontal and \(F\) is perpendicular to the plane. The coefficient of friction between the plane and the block is \(\mu\). What is the minimum force \(F\) necessary to keep the block at rest?

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