Pulley system

  • Thread starter Ciaran
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  • #1
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Homework Statement


Three equal masses are hung from a pulley(2 on one side, 1 on the other). Find the acceleration of the system and the tension between: a) the 2 sides of the pulley and b) between the 2 masses on the same side

Homework Equations




The Attempt at a Solution


Got a= g/3, for a) T= 13.3m N and not 100% sure about b)
 

Answers and Replies

  • #2
Doc Al
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Got a= g/3, for a) T= 13.3m N
Good.

and not 100% sure about b)
What do you think? Apply Newton's 2nd law to one of those masses.
 
  • #3
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Is it T= 2g/3 N?
 
  • #4
Doc Al
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Is it T= 2g/3 N?
Yes, but you left out the mass.

(It's generally a good policy to show how you arrived at your answer, not just give your answer.)
 

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