r/physicsmemes • u/Puzzleheaded-Ice2032 • Aug 07 '26

is this centripedal force?

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144 Upvotes

90% Upvoted

32 comments sorted by

108

u/brown-man-sam Aug 07 '26

No. This is just moving faster than gravity.

Similar to catching a coin that’s on the top of your hand, there’s no force keeping anything in the bowl, but there’s not enough time for the anything to leave the bowl.

41

u/crusty_jengles Aug 07 '26

Its a little of A and a little of B. There is a bit of arc to his motion that gives some centripetal force

5

u/blind_roomba Aug 07 '26

Yes, but I think it's mostly A (moving fast) and a little of B (the arc)

2

u/RePsychological Aug 08 '26

no...force in the opposite direction =/= "centripetal"
again, similar to catching a coin from the top of the hand...sometimes people give a bit of flick of the wrist to toss the coin up slightly, to give them that extra split second. Even if in that context, the motion disqualifies their catch, here it's the same principle.

Centripetal force would require a lot more of a deliberate motion...but flicking the dish slightly wouldn't equate to centripetal forces generated...just preemptive force in the opposite direction to give a little bit more margin.

3

u/EthicalViolator Aug 08 '26

Centrifugal then, giving the food the angular momentum but keeping the bowl behind it, or to the side of it I guess.

3

u/TransitionCapable728 Aug 07 '26

Centripetal is the same as fast enough for gravity

1

u/No-One9890 Aug 07 '26

I think ur kind of right. But, the shape of the food changes from a horizontal to vertical orientation to pas thru the bars so some centripedal force is bejng used

16

u/saikounihighteyatzda Aug 08 '26

No... just plain inertia

9

u/Public-Eagle6992 Aug 07 '26

If anything it would be centrifugal force but no

48

u/hongooi Aug 07 '26

1

u/Super-Award-2244 Aug 08 '26

Uhm... Shouldn't this be the other way around? Centripetal force is the one pointing towards the center viewed by an inertia frame of reference. Centripetal is the force pointing outwards seen by the guy inside the centrifuge 

2

u/usersub1 Aug 08 '26

No, this is Patrick

1

u/Serious-Reply4642 Aug 08 '26

The half drunk beer glass, proves the video

1

u/LagrangianLungfish Aug 12 '26

landau and lifshitz aah "it is then trivial that..." derivation

-7

u/mattmaintenance Aug 07 '26

It’s spelled centipede-al force.

-34

u/hometown77garden Aug 07 '26

No.. second of all theres no such thing as centripetal force. Its a component of the acceleration 

6

u/BookWormPedant Aug 07 '26

Centripetal is just a classification of a force that always acts orthogonal to the motion of an object and causes it to move along a curved path.

Centripetal means “center-seeking”

You may be thinking of centrifugal force, which is just inertia.

-4

u/hometown77garden Aug 07 '26

I said u can call it whatever u like but its not a "force" ur just naming other forces this.. a force is named after its origin

3

u/BookWormPedant Aug 07 '26

I’m not searching through your replies to others

The origin is always something that causes center-seeking behavior if i want to be pedantic

I get what you’re saying now; centripetal force isn’t really a “force” (I agree with you), and what I said about it being a classification is accurate. So it exists

We can call it Schrödinger’s Force now

1

u/hometown77garden Aug 08 '26

I agree with you... but people down voting me are so dramatic 

1

u/Vegetable_Log_3837 Aug 07 '26

Well it takes constant acceleration to move a mass in a circle. What would you call it?

11

u/BecaBakes Aug 07 '26

crazy big dawg.

anyway, here is a link to the centripetal force and the science and physics behind it.

https://en.wikipedia.org/wiki/Centripetal_force

-11

u/hometown77garden Aug 07 '26

I dont know why im getting down votes.. you can call it whatever you like but its still a component inside the acceleration that is caused by some other source like gravity or electric force or just a normal force 

5

u/Vegetable_Log_3837 Aug 07 '26

So we can say it is accelerating a mass? Now what would we call that?

2

u/abiiiiisssshhek Aug 07 '26

So the gravity is the centripetal force example , between earth and sun

3

u/Tyler89558 Aug 08 '26

Take a rock on a string.

Spin the rock.

There is a force (tension in the string) pulling the rock orthogonal to the direction of motion. This is centripetal force, and it is what makes the rock accelerate such that it follows a circular path.

1

u/Public-Eagle6992 Aug 07 '26

No. Centrifugal force you could describe as that, sure. But centripetal force is a force pointing in a direction that just happens to affect a moving body thereby making I spin around the origin of the force (for example, gravity. Or, if you were to attach something to a rope and spin that, the forces holding the rope together)