jee-main 2013 Q3

jee-main · India · 22apr Newton's laws and connected particles Tension in strings connecting blocks in linear arrangement
Two blocks of mass $M_1 = 20\mathrm{~kg}$ and $M_2 = 12\mathrm{~kg}$ are connected by a metal rod of mass 8 kg. The system is pulled vertically up by applying a force of 480 N as shown. The tension at the mid-point of the rod is:
(1) 144 N
(2) 96 N
(3) 240 N
(4) 192 N 
Two blocks of mass $M_1 = 20\mathrm{~kg}$ and $M_2 = 12\mathrm{~kg}$ are connected by a metal rod of mass 8 kg. The system is pulled vertically up by applying a force of 480 N as shown. The tension at the mid-point of the rod is:\\
(1) 144 N\\
(2) 96 N\\
(3) 240 N\\
(4) 192 N
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