Do Newton's Law apply to motion inside your car?
A.Yes, but only when at rest.
B.Yes, but only when traveling at constant velocity or at rest.
C.No, never.
D.Yes, always.
So I tried answering the question with D at first because I was thinking that it is a car in motion so that Newton's Laws should apply to the car. But then it is wrong, so I thought about it again and I notice it said inside the car, so I was thinking maybe the third law doesn't apply since there isn't 2 object exerting on each other inside the car. But that was wrong again. I am not sure where it is just at rest that it applies or that it could be at rest or constant velocity. Could someone please explain to me why is that when it is "inside the car", Newton's Law doesn't applies always?
The correct answer is B. Yes, but only when traveling at constant velocity or at rest.
To understand why this is the case, let's first review Newton's Laws of Motion.
Newton's First Law states that an object at rest will remain at rest, and an object in motion will continue in motion with the same speed and in the same direction unless acted upon by an unbalanced external force. This is also known as the law of inertia.
Newton's Second Law states that the force acting on an object is equal to the mass of the object multiplied by its acceleration. F = ma. This law explains how forces affect the motion of an object.
Newton's Third Law states that for every action, there is an equal and opposite reaction. This law explains the relationship between two objects exerting forces on each other.
Now, when we consider the motion inside a car, we need to understand that there are different frames of reference. The reference frame inside the car is different from the reference frame outside the car.
Inside the car, the passengers and objects are essentially moving with the car itself. If the car is traveling at a constant velocity, such as on a straight road without any acceleration, the passengers inside the car experience a sensation of rest. In this case, Newton's Laws of Motion can be applied inside the car.
However, when the car is accelerating or decelerating, the passengers inside the car will feel the effects of those changes in motion. The passengers will experience a sensation of being pushed forward during acceleration and pushed backward during deceleration. In this case, the forces acting on the passengers inside the car are not balanced, as they are being acted upon by the external forces due to the car's acceleration. Newton's Laws will still apply, but the passengers will feel those forces as they are in a non-inertial reference frame.
Therefore, Newton's Laws apply inside a car when it is traveling at a constant velocity or at rest, but not when it is accelerating or decelerating.
Newton's laws of motion generally apply to motion inside a car, but they may not apply in all cases. The correct answer to the question is B: Yes, but only when traveling at constant velocity or at rest.
Newton's first law, also known as the law of inertia, states that an object at rest will stay at rest, and an object in motion will stay in motion with the same speed and direction unless acted upon by an external force. Inside a car, if it is at rest, Newton's first law applies as there are no external forces acting on the car to cause it to move.
When the car is traveling at a constant velocity, Newton's second law applies. This law states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. Inside the car, if it is moving at a constant velocity, there are no net forces acting on it (assuming there is no acceleration or deceleration, no turning, and no external forces like friction), so Newton's second law holds true.
However, when the car accelerates, decelerates, or turns, external forces come into play, and the motion inside the car becomes more complicated. In these situations, additional forces such as friction, centripetal force, or force due to acceleration or deceleration may need to be considered. Newton's laws can still be applied to analyze and understand these situations, but the specific forces involved may vary.
In summary, Newton's laws generally apply to motion inside a car, but the specific law(s) that are applicable depend on whether the car is at rest, traveling at constant velocity, accelerating, decelerating, or turning.