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AP Physics C: Mechanics
5.5 Rotational Equilibrium and Newton’s First Law in Rotational Form
5.3 Torque
AdvancedMCQMathematicalConceptual17.6k
A Cartesian graph with a horizontal axis labeled x and a vertical axis labeled T. The horizontal axis begins at 0 and has a single tick mark at the far right labeled L. The vertical axis begins at 0 and has two tick marks: one at a moderate height labeled T_0, and one near the top labeled T_1. A single solid straight line segment begins at the vertical intercept (0, T_0) and extends upward and to the right with a constant positive slope, terminating at the point (L, T_1). A horizontal dashed line extends from (L, T_1) leftward to the vertical axis at tick mark T_1, and a vertical dashed line extends downward from (L, T_1) to the horizontal axis at tick mark L. No gridlines, other curves, shading, text, or extraneous markings appear.
Graph of cable tension \(T\) as a function of the block's position \(x\) along the strut.
A uniform horizontal strut of length \(L\) and mass \(M\) is attached to a vertical wall by a frictionless hinge at \(x = 0\). A light cable is connected between the outer end of the strut at \(x = L\) and the wall, making an angle \(\theta\) above the horizontal strut. A small block of mass \(m\) is moved slowly along the strut from the hinge at \(x = 0\) to the tip at \(x = L\), and the tension \(T\) in the cable is recorded as a function of the block's position \(x\), as shown in the graph. Which of the following statements correctly interprets a physical feature of the system based on the graph?

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