Question bank/JEE Main/Physics

System shown in figure is in equilibrium. The magnitude of change
in tension in the string just before and just after, when one of the
spring is cut. Mass of both the blocks is same and equal to m and
springconstant of both springs is k. (Neglect any effect of rotation)

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Before cutting the spring
After cutting the spring
[IMAGE] 2mg - mg = 2 ma
a = g/2
$T_{3} = mg/2$
$T_{2} - T_{3} = mg - mg/2 = mg/2$

Source: Grass-G / P-06 Physics paper 14 October.docx