show that netwon second law contained first and third law of motion
Answers
Answer:
YES,netwon second law contained first and third law of motion
Explanation:
Consider the following scenario. Suppose that you are orbiting around the earth. We'll consider your perspective (in other words, reference frame). You are motionless, i.e. no velocity. However, there is a gravitational force acting upon you, with no other force to balance it out. By Newton's Second Law, you must have an acceleration towards earth. Why don't you fall down to earth?
The reason is because your perspective (reference frame) is a non-inertial reference frame. In other words, your perspective (reference frame) is accelerating in perspective to an inertial reference frame. In other words, Newton's Second Law does not apply in a non-inertial reference frame.
Well, if you don't fully understand the above two paragraphs, don't worry. It just means that there are certain scenarios where Newton's Second Law doesn't apply. To remedy this, Newton had to properly define what a "force" is. And that is where Newton's First Law came in.
Consider what the First Law states: a body will stay at rest or continue its path with constant velocity unless an external force acts upon it. You can think that this law aptly defines what a force is, something that moves a ball from rest or changes its velocity. This prevents the Second Law from applying into the above scenario described.
In other words, though the Second Law seems to include the First Law, the First Law is necessary to define what a force is. Well, at least the two laws are not redundant.
Answer:
Explanation:1)space