Moments, levers and gears

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Question 25

Easy

A uniform wooden plank is balanced at its midpoint on a pivot.

The diagram shows two forces, $P\,$ and $Q$ , acting on the plank.

A horizontal uniform plank balanced at its midpoint on a triangular pivot. There is a downward force P applied to the left of the pivot, and a downward force Q applied to the right of the pivot.

The plank is balanced (in equilibrium).

The moment of force $P\,$ about the pivot is 3.6 N m.

Use the principle of moments to state the moment of force $Q\,$ about the pivot.

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Moments, levers and gears

Question 25

Moments, levers and gears Questions

Moments, levers and gears

Question 25

Moments, levers and gears Questions