when a force is applied through the free end of the spring balance A, the reading on the spring balance - Science - Gravitation

Question

when a force is applied through the free end of the spring
balance A, the reading on the spring balance A is 15 gwt What will
be the reading of spring balance between B

Jyoti Pant · Accepted Answer

When a
force is applied through the free end of spring balance A, both the
spring balances show the same readings on their scales It means
that the force exerted by spring balance A on balance B is equal
but opposite in direction to the force exerted by the balance B on
balance A The force which balance A exerts on balance B is called
the action and the force of balance B on balance A is called the
reaction

when a force is applied through the free end of the spring balance A, the reading on the spring balance A is 15 gwt. What will be the reading of spring balance between B.