a massless string passes over a frictionless pulley and carries two masses m1 and m2(m1>m2) if g is acc. due to gravity then thrust on the pulley is?
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Explanation: thrust =2 × tension in the string
For tension follow these
Find accn on any one a = (m1- m2 )g / m1+ m2
T- m2g = m2 a
Solve T
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