What is the upward force exerted on the board by the support?

AI Thread Summary
The discussion centers on calculating the upward force exerted on a board supported at its midpoint, which weighs 62.6 N, while two children weighing 317.0 N and 500.0 N stand on it. Participants express confusion about the concept of balancing forces and the role of the fulcrum. It is clarified that the upward force is simply the sum of the weights of the board and the children, leading to a straightforward solution. The realization that the problem is simpler than initially thought is a common sentiment among contributors. Ultimately, the upward force is confirmed to be the total weight acting on the board.
alfredo24pr
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Homework Statement



A long uniform board weighs 62.6 N (12.5 lbs) rests on a support at its mid point. Two children weighing 317.0 N (63.4 lbs) and 500.0 N (100.0 lbs) stand on the board so that the board is balanced. What is the upward force exerted on the board by the support?

Homework Equations



F=ma

The Attempt at a Solution



I do not know even where to start. This is confusing
 
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Is there a reason why you wouldn't believe the equal and opposite force on the fulcrum wouldn't be the force of the sum of the weights (including the board)?
 


AC130Nav said:
Is there a reason why you wouldn't believe the equal and opposite force on the fulcrum wouldn't be the force of the sum of the weights (including the board)?

lol! Is it really that simple?
 


alfredo24pr said:
lol! Is it really that simple?

yes it was the sum! I did not believe it was that simple. Thanks!
 

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