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AP® Physics 1 & 2

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Difficult

Weighty Seesaw is Balanced

APPH12-7VDWPO

Two children are on a uniform seesaw that has a weight of 200 and is two meters long.

One child sits at the end to the left and has a weight of 400 Newtons. The second child sits on the end to the right of the fulcrum and weighs 300 Newtons.

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Where must the fulcrum be placed to balance the seesaw​?

A

$1.14\text{ cm}$ from the left side of the seesaw.

B

$86\text{ cm}$ from the left side of the seesaw.

C

$89\text{ cm}$ from the left side of the seesaw.

D

$111\text{ cm}$ from the left side of the seesaw.