State Newton’s third law of motion and write one example of it .
Answers
Answer:
Force is a push or pull acting on an object resulting in its interaction with another object. Force is a result of an interaction. Force can be classified into two categories: contact force such as frictional force and non-contact force such as gravitational force. According to Newton, when two bodies interact, they exert force on each other, and these forces are known as action and reaction pair, which is explained in Newton’s third law of motion.
Newton’s third law of motion states that
“When one body exerts a force on the other body, the first body experiences a force which is equal in magnitude in the opposite direction of the force which is exerted”.
The above statement means that in every interaction, there is a pair of forces acting on the interacting objects. The magnitude of the forces are equal and the direction of the force on the first object is opposite to the direction of the force on the second object.
Solved Example
Aswini and Deepa are standing on identical skateboards. Aswini and Deepa push off of each other and travel in opposite directions. If Aswini (M) and Deepa (m) have identical masses, who travels farther?
Answer : Neither. Both will travel the same distance because the force applied to each will be the same.
Ma = ma
a = a
Acceleration controls how far each of them will travel. Since both have the same acceleration, they travel equal distance.
The mathematical representation of Newton’s third law of motion is let A be the body exerting force F⃗ on the body B, then body B too exerts a force −F⃗ on body A, which is given as:
F⃗ AB=−F⃗ BA
Newton’s third law of motion is associated with conservation of momentum. According to the law for every action, there must be an equal and opposite reaction.
Explanation:
Explanation:
Examples of Newton's third law of motion are ubiquitous in everyday life. For example, when you jump, your legs apply a force to the ground, and the ground applies and equal and opposite reaction force that propels you into the air. Engineers apply Newton's third law when designing rockets and other projectile devices.