Pulley Question : find tension in rope (Help ASAP!)

  • Thread starter Lori
  • Start date
  • #1
Lori

Homework Statement


upload_2017-11-12_16-21-11.png


Homework Equations



F = ma

The Attempt at a Solution


So , i drew a freebody diagram for the 6k gram block, and the tension to the right of I call T2.
Therefore, the force of gravity component parallel to T2 is (6*9.8)sin30. Therefore, T2 is equal to this value which i found is 29.4!! However, i dont think this is right!
 

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Answers and Replies

  • #2
BvU
Science Advisor
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However, i dont think this is right!
You think correctly: you forget about the acceleration...
 
  • #3
Lori
You think correctly: you forget about the acceleration...
what do you mean? :(

I see... i got the answer 41. I had to set netforce for each of them to ma
 
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  • #4
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He is saying that you neglected to include the acceleration.
 
  • #5
Lori
He is saying that you neglected to include the acceleration.
i realized that i should be take the sum of the forces on each object and setting it equal to the Fnet. I only realize this till now!! Few more hours until the exam :(!
 
  • #6
Abhishek kumar
i realized that i should be take the sum of the forces on each object and setting it equal to the Fnet. I only realize this till now!! Few more hours until the exam :(!
In these questions first try to make free body diagram clearly and then write equation accordingly.
 

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