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# Physical independence of force is a consequence of A. Newton’s third law of motionB. Newton’s second law of motionC. Newton’s first law of motionD. All of these

Last updated date: 19th Sep 2024
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Hint: We are asked that physical independence of force is a consequence of which law of motion. We know that there are a total of three laws of motion. By stating and understanding each law we will get the solution.

In the question we are asked to find physical independence of force is a consequence of which law of motion.
We know that Newton’s first law of motion defines that a body will continue to be in a state of rest or motion until an external unbalanced force acts on it. It simply says that if there is a body which is in motion, that body will continue to be in motion until some force in the universe makes the body stop.
From this we can say that Newton’s first law of motion states about the physical independence of force.
Therefore we can say that physical independence of force is a consequence of Newton’s first law of motion.

Hence the correct answer is option C.

Note:
The first law of motion by Newton is also called the law of inertia.
According to the second law of Newton, it is said that the acceleration of a body due to the force acting on that body is directly proportional to the magnitude of that force, in the same direction of force and is inversely proportional to the mass of the body.
The consequences of this law are; the measure of force and an equation to find force given by,
F = ma, were ‘m’ is the mass of the body and ‘a’ is the acceleration of the body. And also we can derive the first law and third law of motion from the second law of motion.
Third law of motion by Newton states that, for every action taking place there will be an equal and opposite reaction.