Question

A block of weight W is suspended from a spring balance. The lower surface of the block rests on a weighing machine. The spring balance reads and the weighing machine reads ( are in the same unit). Then :

This question has multiple correct options
A

if the system is at rest

B

if the system moves down with some acceleration

C

if the system moves up with some acceleration

D

no relation between and can be obtained with the given description of the system

Medium

Solution

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Correct options are A) , B) and D)

The system will remain rest if
As we know that acceleration will come due to the force .
The system moves down if .
Here the readings of the spring balance and the weighing machine are equal to the forces exerted by them on the body.

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