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Two people are carrying a uniform wooden board that is 3.00 m long and weighs 160 N. If one person applies an upward force equal to 60 N at one end, at what point does the other person lift? Begin...

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Two people are carrying a uniform wooden board that is 3.00 m long and weighs 160 N. If one person applies an upward force equal to 60 N at one end, at what point does the other person lift? Begin with a free-body diagram of the board.
Answered Same Day Dec 24, 2021

Solution

David answered on Dec 24 2021
128 Votes
The free bodydiagram is shown in the below figure.


Le the force exerted by the other person is F and he is exerting ata distance x from the center of
the plank.

Now applying Στ = 0 taking the first person aspivot we get 1.5*160 = (1.5+x)F

Also applying ΣF = 0 we get 60N +...
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