Physics in a frictionless plane.

[cyborgbrain]

Imagine a frictionless world. Movement along the world is constrained to the plane of the ground. (The world has gravity)

How would life on the frictionless world be similar to our own? What are somethings that would not change due to the existence of friction?

What are some similarities between a system on a plane with friction and on a plane without friction?

Logically, I would say that inertia holds true for both and Newton's first and second laws hold true however I don't know how one would exert a force to cause an object to move on a friction less plane. (All of this is assuming that this is in a vacuum)

 

[larrybud]

Well, I'd say walking would be out of the question.

 

[JHamm]

Chemical reactions would be the same, I can't imagine moving from 1 point to another to be particularly feasible

 

[gsal]

Without anything to push from, you would need to move around like in space, with little jets or cans with compressed air and use propulsion to move around.

Or in order to move things (or yourself), you could use things to push from, like objects built into the ground...it's a frictionless plane, but nobody said it needed to be plain...these 'objects' can be as simple as grooves on the ground, etc.

Now, I don't know why you said all this is in a vacuum...if it is frictionless, why do you need vacuum? Just say that drag is not there, either, because of firctionless world...other than that...I need to breath!

Typing on a keyboard would be the same.
Drinking from a mug would be the same.
Putting clothes on would be the same.
Reading a book would be the same.

I am not exactly sure the extent of your question about similarities between the two worlds...what's the context?

 

[PJC01]

In a frictionless world, movement would be much easier and more efficient as there would be no resistance or force impeding motion. This would greatly impact transportation, as vehicles would require less energy to move and could potentially reach higher speeds. Similarly, sports and physical activities would also be affected, as there would be less friction between surfaces, making it easier to move and manipulate objects.

However, there are also some aspects of life that would remain unchanged due to the existence of gravity. For example, objects would still fall towards the ground and would require a force to be lifted off the ground. Additionally, the laws of physics, such as Newton's laws of motion, would still apply in a frictionless world.

One of the main similarities between a system on a plane with friction and one without is the presence of gravity. In both cases, gravity would still play a role in the movement and behavior of objects. Additionally, both systems would also follow the laws of motion, as mentioned before.

In terms of differences, a system on a plane with friction would experience a resistance or force that opposes motion, whereas a system on a frictionless plane would not. This would result in different levels of efficiency and ease of movement. Additionally, in a frictionless world, objects would continue to move in a straight line with constant velocity, whereas in a system with friction, objects would eventually come to a stop due to the opposing force.

In terms of exerting a force to cause an object to move on a frictionless plane, one could still use external forces such as pushing or pulling. However, the object would continue to move in a straight line with constant velocity unless acted upon by another force. In a vacuum, this could be achieved using a jet propulsion system or by using electromagnetic forces to push or pull the object.

In conclusion, a frictionless world would greatly impact our daily lives and physical activities, but the fundamental laws of physics would remain the same. The presence of gravity and the laws of motion would still play a crucial role in the behavior of objects in a frictionless plane.