Moments, levers and gears

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Question 23

Easy

A warehouse operator is trying to lift a heavy wooden crate using a simple manual lever system as shown in the diagram below.

A diagram showing a mechanical lever system. A horizontal uniform bar rests on a central pivot (fulcrum). On the left side of the pivot, at a distance of 0.25 m, a heavy cargo crate of weight 900 N is applied. On the right side of the pivot, at a distance of 0.8 m, a downward effort force of 250 N is applied.

The operator cannot lift the crate in this current configuration because the clockwise moment they produce is less than the anticlockwise moment produced by the crate.

Explain one change to the arrangement of the lever system that would make it possible for the operator to lift the crate using the same downward effort of $250 ext{ N}$ .

[2]

Moments, levers and gears

Question 23

Moments, levers and gears Questions

Moments, levers and gears

Question 23

Moments, levers and gears Questions