A 300-M Long Plank of Negligible Mass Has a 30

question 18

Multiple Choice

A 3.00-m long plank of negligible mass has a 30.0-kg mass at one end and a 40.0-kg mass at the other end. How far from the 30.0-kg mass should a fulcrum be placed so that the plank is balanced?

• A)1.71 m
• B)1.29 m
• C)0.750 m
• D)1.50 m
• E)2.25 m

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