m2*g-T=m2*a
T-m1*g=m1*a
(m2*g-T)/(T-m1*g)=m2/m1
T=2*m1*m2/(m1+m2)
P=2*T=4*m1*m2*g/(m1+m2)
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Verified answer
m2*g-T=m2*a
T-m1*g=m1*a
(m2*g-T)/(T-m1*g)=m2/m1
T=2*m1*m2/(m1+m2)
P=2*T=4*m1*m2*g/(m1+m2)
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