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Betty sits 9 feet from the fulcrum and weighs 100 pounds. How far should Ginger sit if she weighs 125 pounds?
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6 votes
Betty sits 9 feet from the fulcrum and weighs 100 pounds. How far should Ginger sit if she weighs 125

pounds?

User Jeepstone
by
4.3k points

1 Answer

4 votes

Answer:

7.2 feet

Explanation:

Torque is calculated by T=Frsin(theta). Betty's total torque is 9 x 1000 (mg) = 9000. Since ginger weighs 125 pounds, 9000 = (125 x 10) x r. Solve for r and get 7.2 feet.

User Arled
by
4.1k points
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