Tension and Pulleys

  • Thread starter jdroidxw
  • Start date
  • #1
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Homework Statement


What is the tension T? The pulley is massless and frictionless.
m1=661 g, w2=5 N, g=9.8 m/s2
Picture attached



Homework Equations


T=w1+w2 ??


The Attempt at a Solution


First of all, I converted 661 g into kg. Next I multiplied that by g. I added that value to the 5N and I thought that was the T which was wrong.

Homework Statement





Homework Equations





The Attempt at a Solution

 

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Answers and Replies

  • #2
Spinnor
Gold Member
2,176
380
If you draw a free-body diagram you don't have to think as hard IMO. See the attached.
 

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  • #3
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Where did you get the 2T' from?
 
  • #4
Spinnor
Gold Member
2,176
380
I drew a free-body diagram for both masses. The tension T will not be the same as the tension in the other rope. Do the two free-body diagrams I drew make sense?
 

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