Applying Newton's Third Law
This question relates to Newton's Third Law of Motion, which states that for every action, there is an equal and opposite reaction.
Analyzing the Forces
Consider the scenario where you are sitting on a chair:
- The force you exert downwards on the chair due to your weight is the action.
- The chair exerts an equal and opposite force upwards on you, supporting your weight. This is the reaction.
Identifying the Reaction Force
The question mentions the force exerted by the chair on you ("the chair exerts an upward force on you"). This upward force *is* the reaction force in the action-reaction pair.
The question asks for "The reaction force in this case". This phrasing refers to identifying the corresponding force in the action-reaction pair. The reaction force to the chair pushing UP on you is the force that YOU exert pushing DOWN on the chair.
Option B correctly identifies this force: "Your weight acting downward on the chair". This is the force exerted by you on the chair, forming the action-reaction pair with the chair's upward force on you.
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 ______.
