**Problem 40: Torque on a Gearshift Lever** (a) A horizontal force of 20 lb is applied to the handle of a gearshift lever as shown. Find the magnitude of the torque about the pivot point \( P \). (b) Find the magnitude of the torque about \( P \) if the same force is applied at the elbow \( Q \) of the lever. **Diagram Explanation:** - The diagram shows a gearshift lever with a handle on one end where the 20 lb force is applied horizontally. - The lever is pivoted at point \( P \). - The dimensions shown include: - The distance from the handle where the force is applied to the pivot \( P \) is 2 feet. - The distance from \( P \) to the elbow \( Q \) is 0.6 feet. - The horizontal distance from point \( P \) to the vertical line passing through \( Q \) is 1 foot.

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