Question

In the arrangement shown, the pulleys are fixed and ideal, the strings are light, `m_(1)gtm_(2)` and S is a spring balance which is itself massless. The readings of S (in units of mass) is

A. `m_(1)-m_(2)`
B. `(1)/(2)(m_(1)+m_(2))`
C. `(m_(1)m_(2))/(m_(1)+m_(2))`
D. `(2m_(1)m_(2))/(m_(1)+m_(2))`

Answer 1

Correct Answer - D
The tension in massless spring at every point is same