Posted by Vy on Friday, October 12, 2012 at 12:53am.
"Calculator" is a noun. I suspect you meant to wrote the verb "calculate".
To get the weight, set the moment about the fulcrum e
"Calculator" is a noun. I suspect you meant to wrote the verb "calculate".
To get the weight, set the moment about the fulcrum e
Whoops! My computer is sending off answers before they are done. The ruler weight W' acts at the 50 cm mark. Let W be the weight added at the 30 cm mark to produce balance.
Set the total moment about the fulcrum equal to zero.
W*10 - W'*10 = 0
W = W'
You need to know the force that produces balance, W, in order to compute the ruler weight, W'.
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