State Neutons third Low of motion. Define Velocity and state its Sl unit.
Answers
Explanation:
Newton’s Third Law of Motion
Newton’s third law of motion describes what happens to the body when it exerts a force on another body.
Newton’s 3rd law states that there is an equal and opposite reaction for every action.
When two bodies interact, they apply forces on each other that are equal in magnitude and opposite in direction. To understand Newton’s third law with the help of an example, let us consider a book resting on a table. The book applies a downward force equal to its weight on the table. According to the third law of motion, the table applies an equal and opposite force to the book. This force occurs because the book slightly deforms the table; as a result, the table pushes back on the book like a coiled spring. Newton’s third law of motion implies the conservation of momentum.
Newton's Third Law Of Motion
Read More: Newton’s Third Law of Motion
Laws of Motion Questions
1) While driving to work, Naveen keeps his wallet in the passenger seat, and by the time he gets to work, his wallet would have fallen on the floor in front of the passenger seat. One day, he asks you to explain why this happens in terms of physics. What do you say?
We can explain this to Naveen in terms of Newton’s first law of motion. The wallet, due to inertia, travels forward with the car until acted upon by another force, in this case, the force of the car floor.
2) Which of Newton’s laws best explains how a magician can pull a tablecloth from underneath dishes?
Newton’s first law of motion can explain how a magician pulls a tablecloth from underneath the dishes. A negligible horizontal force is applied during the process. As per Newton’s first law of motion, the dishes and glasses remain in their state of motion (rest); as a result, they remain undisturbed. The table cloth in the trick is made so slippery that it doesn’t apply any frictional force on glasses and dishes.
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Answer:
Newton's third law :
Newton's third law states that when two bodies interact, they apply forces to one another that are equal in magnitude and opposite in direction. The third law is also known as the law of action and reaction. ... If a body has a net force acting on it, it undergoes accelerated motion in accordance with the second law.
Velocity defination :
The velocity of an object is the rate of change of its position with respect to a frame of reference, and is a function of time. Velocity is equivalent to a specification of an object's speed and direction of motion (e.g. 60 km/h to the north).
Velocity si unit is m/s