Multiple Choice
An 80-kg man balances the boy on a teeter-totter as shown. Note: Ignore the weight of the board. 
-What, approximately, is the magnitude of the downward force exerted on the fulcrum?
A) zero newtons
B) 100 N
C) 600 N
D) 800 N
E) 1000 N
Correct Answer:
Verified
Correct Answer:
Verified
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