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**Momentum And Direct Impact. Subtopic: Impulsive Tension. Help..**

**1. The problem statement, all**

variables and given/known

data

variables and given/known

data

Three particles A, B and C all of mass m rest on a smooth horizontal plane so that angle ABC is 120 degree. B is connected to both A and C by light inextensible string which are initially just taut. An impulse J is then applied to particle B in a direction making an angle of 150

with BC and 90 with BA.

Find impulsive tension in each string and the initial velocity of each particle.

**2. Relevant equations**

**3. The attempt at a solution**

I could do one similar question i.e. when the impulse is applied to B making a horizontal direction to the right. The horizontal velocity of A and B would be the same but A also experiences vertical move. However for this question, I can't solve it. I've tried many times but still don't get the point.

key answers given:

J √3 / 15; 4J√3 / 15

v A: J√3 / 15m along AB

v B: 2J√21 / 15m at arctan 3√3 to AB

v C: 4J√3 / 15m along CB

Please help me. Thanks in advance!

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