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  • Can someone help me with this, A light spring balance hangs from the hook of the other light spring balance and a block of mass M Kg hangs from the former one. Then the true statement about the scale reading is :

A light spring balance hangs from the hook of the other light spring balance and a block of mass M Kg hangs from the former one. Then the true  statement about the scale reading is :

  • Option 1)

    both the scales read  M Kg each

  • Option 2)

    the scale of the lower one reads M kg  and of the upper one zero

  • Option 3)

    the reading of the two scales can be anything  but the sum of the reading will be M kg 

  • Option 4)

    both the scales read M/2 kg

 

Answers (1)

best_answer

As we learnt in

Equilibrium of Concurrent Forces -

If all the forces working on a body are acting on the same point then they are said to be concurrent.

- wherein

\sum \vec{F_{net}}= 0   

or \sum \vec{F_{x}}= 0,\sum \vec F_{y}= 0, \sum \vec F_{z}= 0

 

\ast  Three forces will be in equilibrium if they are represented by three sides of triangle taken in order

 

 

 Both the scales read  M Kg each.

Correct option is 1.


Option 1)

both the scales read  M Kg each

This is the correct option.

Option 2)

the scale of the lower one reads M kg  and of the upper one zero

This is an incorrect option.

Option 3)

the reading of the two scales can be anything  but the sum of the reading will be M kg 

This is an incorrect option.

Option 4)

both the scales read M/2 kg

This is an incorrect option.

Posted by

divya.saini

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