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Two blocks of masses 3 kg and 5 kg are connected by a metal wire going over a smooth pulley. The breaking stress of the metal is `24/pi xx 10^2 Nm^( - 2)` . What is the minimum radius of the wire ?
(take `g=10ms^(-2)`)

A

1.25 Cm

B

1250 cm

C

12.5 cm

D

125 cm

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