State Newton’s third law of motion. Give any two examples from daily life
based on Newton’s third law of motion and identify action and reaction in
each case
.
Answers
To every action, there is an equal and opposite reaction.
It means that if a body A exerts a force F1 on a body B, and the body B exerts a force F2 on body A, then:
Newton’s Third Law
F1=F2
That is, they are equal in magnitude but opposite in direction.
Whenever two bodies interact, they will exert equal and opposite forces on each other.
This law can be observed anywhere and everywhere in the surroundings. Some examples of action-reaction pairs are mentioned below:
1) A swimmer pushes the water backward by his/her hands and in return the water pushes the swimmer forwards, thus enabling him to go forward during swimming.
2) A man walking on the ground: While walking, a person pushes the ground in the backward direction, and the ground in return pushes the person in the forward direction, thus making him/her walk.
3) A bird while flying pushes the air downwards with the help of its wings. Consistent with Newton’s third law of motion, the air pushes the bird upwards.
4) When a person is lying on a bed, his weight is opposed by a reaction force from the bed (assuming it must be there because of Newton’s third law of Motion). In turn, both forces cancel each other out, and the person enjoys the equilibrium position.
There are a million more examples of Newton’s third law of motion in our environment. If you observe closely, you can find it anywhere and everywhere.
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1 Comment
Subhas Sharma SEPTEMBER 6, 2019 AT 1:15 PM
its helpfull for a learner
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Hi Guys.
Explanation:
According to Newton's third law, for every action there is an equal and opposite reaction but action and reaction forces acts on different bodies.
Examplse related to Newton's third law of motion from day to day life are - when a boy hits a wall then he is doing action on the wall and as a result he will feel some force on his hand called reaction force, here action force is given to the wall and the reaction force is felt by the boy.
Hope it helps.