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Figure shows a \( 5 \mathrm{~kg} \) ladder hanging from a string that is connected with a ceiling and is having a spring
\( \mathrm{P} \) balance connected in between. A boy of mass \( 25 \mathrm{~kg} \) is climbing up the ladder at acceleration \( 1 \mathrm{~m} / \mathrm{s}^{2} \).
W Assuming the spring balance and the string to be massless and the spring to show a constant reading, the reading of the spring balance is: (Take \( g=10 \) \( \mathrm{m} / \mathrm{s}^{2} \) )
(1) \( 30 \mathrm{~kg} \)
(2) \( 32.5 \mathrm{~kg} \)
(3) \( 35 \mathrm{~kg} \)
(4) \( 37.5 \mathrm{~kg} \)
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