The question describes a scenario involving forces during swimming. This scenario is a direct application of Newton's Third Law of Motion.
Newton's Third Law Explanation
Newton's Third Law states that for every action, there is an equal and opposite reaction.
- Action: The swimmer exerts a force by pushing the water backward.
- Reaction: The water exerts an equal and opposite force on the swimmer, pushing the swimmer forward.
Therefore, the force that propels the swimmer forward is the reaction force exerted by the water on the swimmer.
Identifying the Correct Force
Based on Newton's Third Law:
- The swimmer pushes water backward (Action).
- The water pushes the swimmer forward (Reaction).
Option 1 correctly identifies this reaction force.
Options 2, 3, and 4 are incorrect because they misidentify the direction of the reaction force or the source of the propulsive force.
The correct option is 1: Water pushes the swimmer forward.
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
