A block of mass 10kg is suspended through two light spring balances as

1.	A block of mass 10kg is suspended through two light spring balances as shown in figure (5-Q2).(a) Both the scales will read 10kg.(b) Both the scales will read 5kg.(c) The upper scale will read 10kg and the lower zero.(d) The readings may be anything but their sum will be 10kg.
Answer» (a) Both the scales will read 10kg. Explanation: At any point between the load and the ceiling the tension force will be equal to the load as per the third law of motion.

A block of mass 10kg is suspended through two light spring balances as shown in figure (5-Q2).(a) Both the scales will read 10kg.(b) Both the scales will read 5kg.(c) The upper scale will read 10kg and the lower zero.(d) The readings may be anything but their sum will be 10kg.

Answer»

(a) Both the scales will read 10kg.

Explanation:

At any point between the load and the ceiling the tension force will be equal to the load as per the third law of motion.