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Find the acceleration of the system and the maximum force

  • #1
56
1

Homework Statement


There are 3 masses ma= 50 kg, mb= 60kg, mc= 80kg. These masses are connected with a rope that affords a tension of 1000 N. On the mass 3 is applied a force F. Knowing that the tension between A and B TAB= 200 N. a)Find the acceleration b) find the maximal value of the force F so that the rope doesn't cut off. a) [4m/s2] b) [1727N]

Homework Equations


F=m*a

The Attempt at a Solution


TAB= ma*a => a=TAB/ ma
 

Answers and Replies

  • #2
Doc Al
Mentor
44,894
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TAB= ma*a => a=TAB/ ma
That's good. What about part b?
 
  • #3
56
1
That's good. What about part b?
I don't know... Could you help?
 
  • #4
Doc Al
Mentor
44,894
1,145
I don't know... Could you help?
It's actually quite similar to part a. Draw yourself a diagram. Hint: Which segment of rope would break first, if the force is increased too much?
 

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