Torque (τ) is a rotational force — the tendency of a force to rotate an object about an axis. It equals force × distance × sin(angle). Engineers use it for tightening bolts, designing engines, and analysing structures.
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Pro Tip
Always apply torque perpendicular to the lever arm (90°) for maximum efficiency.
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Did You Know?
Car engine torque is measured in N·m or lb·ft. A typical family car produces 150–300 N·m; a diesel truck can exceed 2,000 N·m.
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