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Find the reading of spring balance in th...

Find the reading of spring balance in the adjoining figure, pulley and strings are ideal.

Text Solution

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The correct Answer is:
2F
FBD of spring balance

`R=T" . . . . . . . . .. (i)"`
FBD of pulley
`T=2F" . . . . . ."(ii)`
`R=2F`
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Knowledge Check

  • Find the reading of spring balance as shown in figure-2.154. Assume that mass M is in equilibrium :

    A
    8 N
    B
    9 N
    C
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    D
    Zero

  • The reading of the ideal voltmeter in the adjoining diagram will be

    A
    `4 V`
    B
    `8 V`
    C
    `12 V`
    D
    `14 V`

  • 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

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

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