A Seesaw Made of a Plank of Mass 10

question 60

Multiple Choice

A seesaw made of a plank of mass 10.0 kg and length 3.00 m is balanced on a fulcrum 1.00 m from one end of the plank. A 20.0-kg mass rests on the end of the plank nearest the fulcrum. What mass must be on the other end if the plank remains balanced?

• A)6.67 kg
• B)7.50 kg
• C)10.0 kg
• D)-10.0 kg
• E)5.00 kg

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