Q125 / 180 · KCET 2017 · Physics

A body of mass \( 50 \mathrm{~kg} \), is suspended using a spring balance inside a lift at rest. If the lift starts
falling freely, the reading of the spring balance is

  • A
    \( 50 \mathrm{~kg} \)
  • B
    > \( 50 \mathrm{~kg} \)
  • C
    \( 50 \mathrm{~kg} \)
  • Correct answer
    D
    \(=0 \)

Solution

Given, a body of mass \( 50 \mathrm{~kg} \) is suspended using spring inside a lift.
If lift falls freely, then there is a condition of weightlessness, thus the reading of the spring balance is \( 0 \).

Hence, the correct answer is option: 'D'.

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