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Particle Mechanics exercises. Please help.

  1. Mar 10, 2015 #1
    1. The problem statement, all variables and given/known data
    Two particles A and B, of masses 2m kg and m kg respectively, are connected by a light inextensible string which passes over a fixed smooth pulley. The system is released from rest, with both portions of the string vertical and taut, while A and B are at the same height. Find the magnitude of the acceleration of the particles and the tension in the string.
    The string breaks when the speed of each particle is u m/s. Find, in terms of u, the difference in height between the particles A and B,
    a. when the string breaks.
    b. when B reaches it s highest point, assuming that A has not reach the ground and B has not reached the pulley.
     
  2. jcsd
  3. Mar 10, 2015 #2

    BvU

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    Hello HC, welcome to PF :smile: !

    So far for the problem statement. Interesting.

    Now for the rest of the template. The guidelines require an effort on your part to come to a solution. That also helps us to provide more useful assistance: you don't need the answer, you need the exercise !

    2. Relevant equations


    3. The attempt at a solution
     
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