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Science

usonian

(24,154 posts)

6. This is a bit geeky, but it tries to explain circular motion as a consequence of Newton's laws.

Reply to brush (Original post)

Wed Feb 8, 2023, 09:37 PM

Feb 2023

Uniform Circular Motion

The point is that the same laws apply to satellites, CD's, atoms ...

An object in circular motion is falling towards the object that's attracting it, and at the same time, being pushed away from it by the energy it was propelled with. The only way to balance this is to rotate. (It it wasn't propelled, it would just fall, like the proverbial apple from a tree.

Most stuff in the universe rotates. We are right now rotating around the sun, and the sun is rotating around the center of the galaxy and so on.

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DU scientists/astronomers: Would someone pls expound on how... [View all] brush Feb 2023 OP

That Russian scientist/other scientists had studied Isaac Newton rickford66 Feb 2023 #1

Issac Newton how? brush Feb 2023 #2

For one thing his equations for gravity. rickford66 Feb 2023 #4

We're not all HS physics students. Just curious. Thanks anyway though. brush Feb 2023 #8

Newton's cannonball Jim__ Feb 2023 #5

Thank you. brush Feb 2023 #9

Also Johannes Kepler. nt sorcrow Feb 2023 #3

This is a bit geeky, but it tries to explain circular motion as a consequence of Newton's laws. usonian Feb 2023 #6

Thank you. I just get curious at times how things work... brush Feb 2023 #7

So did I at an early age. That's why I majored in physics. usonian Feb 2023 #10

You must be one of those 9-year-olds who... brush Feb 2023 #12

No, I graduated about a year early, because I started first grade at the tail end of the cutoff. usonian Feb 2023 #13

Wow... slightlv Feb 2023 #11

I used to watch the Cosmos shows (now you can watch the videos) by Carl Sagan usonian Feb 2023 #14

I hear you about "outdated"! slightlv Feb 2023 #15

I put your question to ChatGPT, fwiw... intrepidity Feb 2023 #16

Thank you. AI is useful, it can function as research... brush Feb 2023 #17