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In the arrangement shown, the pulleys ar...

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))`

Text Solution

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The correct Answer is:
D
The tension in massless spring at every point is same
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CP SINGH-NEWTONS LAWS OF MOTION-EXERCISES
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  2. The pulleys and strings shown in the figure are smooth and of negligib...

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  4. If a body is in equilibrium under a set of non-collinear forces, then ...

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  6. Consider the situation as shown in the firgure.

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  8. The acceleration of the block A and B are

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  9. The acceleration of the block A and B are

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  10. The acceleration of m is

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  11. In the arrangement shown in the Fig, the ends P and Q of an unstretcha...

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  12. In the figure, the blocks are of equal mass. The pulley is fixed. In t...

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  13. A spring fo spring constant k is broken in the length ratio 1:3. The s...

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  14. A block of mass 10 kg is suspended through two light spring balances a...

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  15. In the arrangement shown, the pulleys are fixed and ideal, the strings...

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  17. The masses of 10 kg and 20 kg, respectively, are connected by a light ...

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