Question
Asked Apr 5, 2019
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What weight could you lift by exerting a force of 45 N on the seesaw?

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Expert Answer

Step 1

Figure shows the diagram showing the force exerted on one end of the see saw.

The see saw allows a small force exerted at its end to do the same work as large force exerted near its pivot.

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Step 2

Each seesaw is balanced only when the net torque about its fixed pin support point is zero. Torque is the measure of the force that can cause an object to rotate about its axis.

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Step 3

When two persons of equal weight sit at equal distances from the pivot, they produce equal but oppositely directed torques about the pivot. These torques sums to zero so that seesaw ex...

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