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shadow240	Posted: Sep 27 2011, 03:18 PM Quote
Newbie Group: Members Posts: 2 Joined: 26-September 11 Positive Feedback: 0% Feedback Score: 0	Find the tension in the string between m1 and m2 in the following figure, given that m1 = 0.8 kg, m2 = 2.2 kg, and m3 = 2.7 kg. https://general.physics.rutgers.edu/gifs/CJ/4-31.gif plz help
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Posted: Sep 27 2011, 03:36 PM

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QUOTE (shadow240 @ Sep 27 2011, 03:18 PM)

Find the tension in the string between m1 and m2 in the following figure, given that m1 = 0.8 kg, m2 = 2.2 kg, and m3 = 2.7 kg.

https://general.physics.rutgers.edu/gifs/CJ/4-31.gif

plz help

I did a= f/m total = gm3/m1+m2+m2+m3 = 3.95

F=am1 = (3.95)(.8)= 3.16 =tension 1

But its incorrect

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Kino	Posted: Sep 28 2011, 11:44 PM Quote
Advanced Member Group: Power Member Posts: 357 Joined: 5-March 11 Positive Feedback: 100% Feedback Score: 9	Not sure why you've added m2 twice in your first equation. Assuming that's a typo, your answer of 3.95m.s^-2 is consistent with m1+m2+m3=6.7kg, but I make it 5.7kg.
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