Question

A light spring balance hangs from the hook of the other light spring balance and a block of mass A/kilogram hangs from the former one. Which of the following statements about the scale reading is true?

• A. Both the scales read $M /2$ kilogram each
• B. Both the scales read $M$ kilogram each
• C. The scale of the lower one reads $M$/kilogram and of the upper one zero
• D. The reading of the two scales can be anything but the sum of the reading will be $M$ kilogram

Answer 1

Answer: (B)

The springs are connected in series and the spring balance are massless therefore both the scales read M kg each