SOLUTION: If a uniform bar is to balance on a fulcrum, the ration of the larger weight to the smaller weight must equal the ratio of the smaller distance to the larger distance.
If an 8 kg
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Question 181154: If a uniform bar is to balance on a fulcrum, the ration of the larger weight to the smaller weight must equal the ratio of the smaller distance to the larger distance.
If an 8 kg weight is 7.2m from the fulcrum, how far from the fulcrum is a 9 kg weight which balances it?
HOLY TOLEDO THIS QUESTION IS RANK. PLEASE HELP
Found 2 solutions by solver91311, stanbon:
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Just a simple proportion will do the trick:
Cross multiply:
(7.2))
You can do your own arithmetic.
John
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
If a uniform bar is to balance on a fulcrum, the ratio of the larger weight to the smaller weight must equal the ratio of the smaller distance to the larger distance.
If an 8 kg weight is 7.2m from the fulcrum, how far from the fulcrum is a 9 kg weight which balances it?
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x/9 = 7.2/8
x = 9(7.2/8)
x = 9*0.9
x = 8.1 meter
======================
Cheers,
Stan H.
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