Question

A man is standing on a spring platform. Reading of spring balance is 60 kg wt. If the man jumps outside the platform, then reading of the spring balance will :

• A. Remains same
• B. Decreases
• C. Increases
• D. First increases and then decreases to zero

Answer 1

Answer: (D)

First increases and then decreases to zero

First increases and then decreases to zero.
To jump off, the man exerts extra force on the springboard and hence the reading increases. But when the man leaves, the reading automatically decreases.