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 motion of a particle of mass m is described by the relation, y = ut - 1⁄2 gt2, where u is the initial velocity of the particle. The force acting on the particle is
The motion of ______ body is an example of uniformly accelerated motion.
- in a particular direction is velocity.
Motion of an object is if its velocity is constant.
The motion of the body moving along a circular path is an example of ______.
