A light inextensible string that goes over a smooth fixed pulley as shown in the figure connects...

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A light inextensible string that goes over a smooth fixed pulley as shown in the figure connects two blocks of masses \( 0.36 \mathrm{~kg} \) and \( 0.72 \mathrm{~kg} \). Taking \( g=10 \mathrm{~m} / \mathrm{s}^{2} \), find the work done (in joules) by the string on the block of mass \( 0.36 \mathrm{~kg} \) during the first second after the system is released from rest
(a) 6 Joule
(b) 5 Joule
(c) 8 Joule
(d) 2 Joule
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