Plain-English Meaning
Torque measures how effectively a force rotates an object about an axis.
Mechanics questions usually become easier once you identify whether the problem is about force balance, kinematics, energy, or conservation.
Deeper Explanation
Torque measures how effectively a force rotates an object about an axis.
Worked Example
Problem: A 30 N force is applied at 90° to the end of a 0.5 m wrench. Find the torque.
- τ = rF sinθ
- τ = 0.5 × 30 × sin(90°) = 0.5 × 30 × 1
- τ = 15 N·m
Result: 15 N·m
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At A Glance
Category: Mechanics
Levels covered:
Best use: Start with the formula meaning, then move to the worked example and quiz so the equation turns into a tool instead of a memorised line.