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AP Physics C: Mechanics
3.2 Work
BeginnerMCQMathematicalConceptual13.6k
A rectangular crate labeled m rests on a horizontal ground line. A horizontal displacement vector arrow labeled d points to the right. A solid arrow labeled F extends from the upper-right corner of the crate directed upward and to the right at an angle labeled \theta above the horizontal. A downward vertical arrow labeled F_g extends from the center of the crate, and an upward vertical arrow labeled F_N extends from the bottom of the crate. No other labels, lines, text, or axes appear.
A crate pulled by a constant force at an angle \(\theta\) along a horizontal surface.
A crate of mass \(m\) is pulled a distance \(d\) along a flat, horizontal surface by a constant force of magnitude \(F\) directed at an angle \(\theta\) above the horizontal, where \(0 < \theta < 90^\circ\). The crate moves purely horizontally to the right. Which of the following correctly identifies the work done on the crate by the applied force \(W_F\), the gravitational force \(W_g\), and the normal force \(W_N\) during this displacement?

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