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A force F= mg is applied on C, all pullies are frictionless and we need to find the reading of the spring balance, basically the tension in it.
The Attempt at a Solution
I assumed the pulley and block A are moving downwards with an acceleration a1, then used pseudo forces to calculate acceleration of B and C which comes out to be
g/2. Then I used the equation for A Tspring
I need another equation relating tension in spring to that in wire connecting B and C.
Or i can consider the mass of pulley as that of the blocks combined which gives me 2Twire - Tspring=2ma1? The pulley is massless, though.
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