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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

Correct Answer:

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