As shown in the figure, two equal masses each of \( 2 \mathrm{~kg} \) are suspended from a sprin...

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As shown in the figure, two equal masses each of \( 2 \mathrm{~kg} \) are suspended from a spring balance. The reading of the spring balance will be
(a) Zero
(b) \( 2 \mathrm{~kg} \)
(c) \( 4 \mathrm{~kg} \)
(d) Between zero and \( 2 \mathrm{~kg} \)
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