1.

In the arrangement shown in figure pulleys and strings are ideal m_(1) gt m_(2). S is spring balance which is itself massless. The reading of balance will be

Answer»

`G(m_(1)-m_(2))`
`(1)/(2) (m_(1)+m_(2))g`
`(m_(1)m_(2)g)/(m_(1)+m_(2))`
`(2m_(1)m_(2)g)/(m_(1)+m_(2))`

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