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Two masses of 1 kg and 5 kg are attached...

Two masses of 1 kg and 5 kg are attached to the ends of a massless string passing over a pulley of negligible weight. The pulley itselt is attached to a light spring balance as shown in figure. The masses start moving during this interval, the readcing of spring balance will be-

A

More than 6 kg

B

Less than 6 kg.

C

Equal to 6 kg.

D

None of the above

Text Solution

Verified by Experts

The correct Answer is:
B
as motionis also happeing
`therefore` net force on pulley by string is less than 6g.
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Knowledge Check

  • Two masses of 1kg and 5kg are attached to the ends of a massless string passing over a pulley of negligible weight. The pulley itself is attached to a light spring balance as shown in figure. The masses start moving during this interval, the reading of spring balance will be:

    A
    more than 6kg
    B
    less than 6kg
    C
    equal 6kg
    D
    none of the above

  • Two masses 2 kg and 3 kg are attached to the end of the string passed over a pulley fixed at the top. The tension and acceleration are

    A
    `(7g)/(8),(g)/(8)`
    B
    `(21g)/(8),(g)/(8)`
    C
    `(21g)/(8),(g)/(5)`
    D
    `(12g)/(5),(g)/(5)`

  • Two masses m_(1) and m_(2) are attached to a spring balance S as shown in Figure. If m_(1)gt m_(2) then the reading of spring balance will be

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

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