The reading of the scale due to the given masses is 0.
Net force of the masses
The two masses are connected by massless spring. Since the masses are at rest, the sum of all the forces acting on the scale will be zero.
[tex]F _{net} = 0\\\\T+ M_1g - M_2g = 0\\\\T = m_2g -m_1g[/tex]
Reading of the scale
The reading of the scale is equal to the tension in the pulley connecting the two masses.
The tension on the pulley is calculated as follows;
T = Mg - Mg
T = 8g - 8g
T = 0
Thus, the reading of the scale due to the given masses is 0.
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