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AP Physics C: Mechanics
6.3 Angular Momentum and Angular Impulse
6.2 Torque and Work
6.1 Rotational Kinetic Energy
AdvancedMCQMathematicalConceptual20.8k
A graph plotted on a pair of perpendicular axes with a horizontal axis labeled t and a vertical axis labeled P. The axes meet at an origin labeled 0. A single solid straight line starts at the origin (0, 0) and extends upward and to the right into the first quadrant at a constant positive slope, terminating at a point. From this terminal point, a vertical dashed line extends straight down to a tick mark labeled T on the horizontal axis, and a horizontal dashed line extends straight to the left to a tick mark labeled P_{max} on the vertical axis. The background is solid white with no gridlines. No other labels, lines, text, or axes appear.
Graph of net power \(P\) delivered to a turbine rotor versus time \(t\).
A turbine rotor with rotational inertia \(I\) is mounted on a fixed, frictionless axle and is initially at rest at time \(t = 0\). A motor delivers a net mechanical power \(P\) to the rotor that increases linearly with time \(t\), as shown in the graph. Which of the following statements correctly describes the rotational motion of the turbine as a function of time \(t\) over the interval shown?

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