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Finding acceleration of block

  • Thread starter Saitama
  • Start date
  • #26
3,812
92
The problem is that you can not make the force of friction equal to mu mg, if A does not move. It is static friction then, what you do not know. Ignore the equation for aA. T is not equal to 45.

ehild
Thanks ehild! I have got the right answer now. :smile:

One more thing, how much time should a problem like this would require? I got this question in my test paper and was totally clueless at that time.
 
  • #27
ehild
Homework Helper
15,492
1,874
Practice. The numbers are simple, so you can solve it in a few minutes. And that is a typical problem, with blocks and pulleys, connected by string.

You need to get the skill.

ehild
 

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