Question

A block of mass $20\, kg$ is suspended through two spring balances with negligible mass as shown in figure. What will be the readings in the upper and lower balance respectively?

• A. 0 kg, 20 kg
• B. 10 kg, 20 kg
• C. 20 kg, 10 kg
• D. 10 kg, 10 kg
• E. 20 kg, 20 kg

Answer 1

Answer: (E)

A block of mass $20\, kg$ is suspended through two spring balance as shown in figure. Since, it is given that, spring balances has negligible mass.

So, $T_{1}=200\, N$
$T_{2}=200\, N$
and $T_{3}=200\, N$
i.e., tension in both suspended balances is some. So each has reading of $20\,kg$.