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/π × 102 Nm–2 .
What is the minimum radius of the wire?
(Take g = 10 ms–2)
(1) 125 cm
(2) 1250 cm
(3) 12.5 cm
(4) 1.25 cm
