Spring Balance Setup Analysis
The setup involves two spring balances, A and B, connected in series. Spring balance B is fixed to a rigid support. A force is applied to spring balance A. Crucially, both spring balances register the same reading.
Newton's Third Law Application
This observation directly relates to Newton's Third Law of Motion, which states that for every action, there is an equal and opposite reaction.
- When spring balance A applies a force on spring balance B (action), spring balance B simultaneously exerts an equal and opposite force back on spring balance A (reaction).
- The rigid support ensures that B can exert this reaction force.
Equal Readings Interpretation
A spring balance measures the magnitude of the force (tension) acting on it.
- Since both spring balance A and spring balance B show the same reading, it confirms that the magnitude of the force exerted by A on B is equal to the magnitude of the force exerted by B on A.
- Newton's Third Law guarantees these forces are also opposite in direction.
Therefore, the observation indicates that the force exerted by A on B is equal in magnitude and opposite in direction to the force exerted by B on A.
Important Questions from Motion
The rate of change in the velocity of an object per unit time is referred as ________.
Which of the following is a correct equation of motion?
The acceleration of an object is said to be _______ when an object travels in a straight line and its velocity increases or decreases by an equal amounts in equal intervals of time.
What is the friction force employed between the two surfaces interacted in relative speed?
The rate of change of momentum of an object is
