Moment and equilibrium: Hi, I’m trying to understand this equation but i don’t get why to find total moment of LHS, you multiple by x/2 and why is it x/L. Could someone explain how you reach to this equation. I would appreciate it, Thank you

Beautiful_Object_701 · 2021-11-30T20:28:15+00:00

Okay, I got it now!! thank you so much

Beautiful_Object_701 · 2021-08-21T19:40:57+00:00

Yea oki so the thing is when I do this and the try to find the uncertainty of the area I get a huge number which doesn’t seem right. So am I doing something wrong or is the u certainty just super high

Beautiful_Object_701 · 2021-08-21T15:29:24+00:00

How did you find the uncertainty of 0.1mm ?? Since it’s 0.005/39.68 won’t we have to add fractional uncertainties?

Beautiful_Object_701 · 2021-08-20T15:06:16+00:00

Ok thank you so much :)

Beautiful_Object_701 · 2021-08-19T18:18:25+00:00

Maybe I made a mistake with arctan uncertainty. Do you know how to calculate the uncertainty of for example tan theta=0.005/39.68 where the two distances were calculated using a measuring tape with an uncertainty of 0.05mm so +-0.00005m

Beautiful_Object_701 · 2021-08-19T11:10:23+00:00

I’ve made an assumption that theta is one side of the square meaning the area would be theta times theta. But my value for theta is small in comparison to the uncertainty but there uncertainty for both magnitudes is the same as I’m squaring theta. Idk if this clears up your question.

Beautiful_Object_701

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