Science help!!?

Question

If you're standing up in a subway train, and the train suddenly stops, your body continues to go forward.

Is this an example of Newton's first, second, or third law of motion?

Answer 1

No, it's Murphy's Law. And, at the time you're probably drinking a cup of HOT coffee, so you'll spill it on the person in front of you, making them mad and they'll probably hit you in the mouth.

Answer 2

newton's first law .... hope this helps see below:


Newton's first law: law of inertia
Lex I: Corpus omne perseverare in statu suo quiescendi vel movendi uniformiter in directum, nisi quatenus a viribus impressis cogitur statum illum mutare.

An object at rest will remain at rest unless acted upon by an external and unbalanced force. An object in motion will remain in motion unless acted upon by an external and unbalanced force.

This law is also called the law of inertia.

The net force on an object is the vector sum of all the forces acting on the object. Newton's first law says that if this sum is zero, the state of motion of the object does not change. Essentially, it makes the following two points:

An object that is not moving will not move until a net force acts upon it.
An object that is in motion will not change velocity (accelerate) until a net force acts upon it.
The first point seems relatively obvious to most people, but the second may take some thinking through, because we have no experience in every-day life of things that keep moving forever (except celestial bodies). If one slides a hockey puck along a table, it doesn't move forever, it slows and eventually comes to a stop. But according to Newton's laws, this is because a force is acting on the hockey puck and, sure enough, there is frictional force between the table and the puck, and that frictional force is in the direction opposite the movement. It is this force which causes the object to slow to a stop. In the absence of such a force, as approximated by an air hockey table or ice rink, the puck's motion would not slow. Newton's first law is just a restatement of what Galileo had already described and Newton gave credit to Galileo. It differs from Aristotle's view that all objects have a natural place in the universe. Aristotle believed that heavy objects like rocks wanted to be at rest on the Earth and that light objects like smoke wanted to be at rest in the sky and the stars wanted to remain in the heavens.

However, a key difference between Galileo's idea from Aristotle's is that Galileo realized that force acting on a body determines acceleration, not velocity. This insight leads to Newton's First Law - no force means no acceleration, and hence the body will continue to maintain its velocity.

The Law of Inertia apparently occurred to many different natural philosophers independently. Inertia of motion was described in the third century BCE in the Mo Tzu, a collection of Chinese philosophical texts, and the 17th century philosopher René Descartes also formulated the law, although he did not perform any experiments to confirm it.

There are no perfect demonstrations of the law, as friction usually causes a force to act on a moving body, and even in outer space gravitational forces act and cannot be shielded against, but the law serves to emphasize the elementary causes of changes in an object's state of motion: forces.

Answer 3

It's Newton's first law. Law of inertia.
It states that an object in motion will remain in motion unless acted upon by an external and unbalanced force.

Answer 4

I would say the first law. Your body continues to go forward because there is no force stopping your body, just the train.

Answer 5

First. An object at rest remains at rest and an object in motion remains in motion at constant velocity unless acted upon by an unbalanced external force. It's an example of inertia.

Answer 6

newtons second law. because third law is about gravity, and the first law is about inertia which is basically tha if you not moving the you will remain at that state unless someone or something makes you move.