Uniform Circular Motion: Crash Course Physics #7
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Date: 2022-04-04
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Comments and reviews: 10
Albert
The problem with Centripital as well as centrifugal force is they're both none fundamental and without action or reaction. So what is really taking place in circular motion? Well there's an outwards force that creates susceptibility in the center for an external force to get trapped in like gravity. If you stir your coffee you'll see the center stoop down, well earths gravity deviates to the center trying to keep a grip on the faster moving molecules in the outer perimeter but losses grip on some, the center molecules take up loss and become heavier and stoop down. The earth is spinning over 1000 mph and the Sun's pull deviates to the center of earth to create the
g-constant acceleration who's lagging force causes gravity not Centripital force.
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The problem with Centripital as well as centrifugal force is they're both none fundamental and without action or reaction. So what is really taking place in circular motion? Well there's an outwards force that creates susceptibility in the center for an external force to get trapped in like gravity. If you stir your coffee you'll see the center stoop down, well earths gravity deviates to the center trying to keep a grip on the faster moving molecules in the outer perimeter but losses grip on some, the center molecules take up loss and become heavier and stoop down. The earth is spinning over 1000 mph and the Sun's pull deviates to the center of earth to create the
g-constant acceleration who's lagging force causes gravity not Centripital force.
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Been
Not sure if anyone will read this but I have one question left: If the human centrifuge pull people inwards, why is it so hard for the person themselves to move inwards towards the center? Is it because while they are being pulled towards the center their momentum is still going around in a circle so they aren't actually fighting a force pushing them out, but around? Very confusing concept
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Not sure if anyone will read this but I have one question left: If the human centrifuge pull people inwards, why is it so hard for the person themselves to move inwards towards the center? Is it because while they are being pulled towards the center their momentum is still going around in a circle so they aren't actually fighting a force pushing them out, but around? Very confusing concept
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Guddy
Ma'am can you please help me with this question.
One end of a string of length 'l' is connected to a particle of mass 'm' and the other to a small peg on a smooth horizontal table. If the particle moves in a circle with speed 'v' and the tension in the string is 'T', then the net force on the particle is
(A) T
(B) T - (mv-2/l)
(C) T + (mv-2/l)
(D) 0
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Ma'am can you please help me with this question.
One end of a string of length 'l' is connected to a particle of mass 'm' and the other to a small peg on a smooth horizontal table. If the particle moves in a circle with speed 'v' and the tension in the string is 'T', then the net force on the particle is
(A) T
(B) T - (mv-2/l)
(C) T + (mv-2/l)
(D) 0
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Scotty
There is a major difference between the NASA study and a normal test on how many G forces one can withstand. Under normal circumstances, a normal person would pass out from 6 G's in about 30 seconds or 8 G's in about 10 seconds. Perhaps the NASA study used a G-Suit to increase tolerance, but 10 G's otherwise is not good.
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There is a major difference between the NASA study and a normal test on how many G forces one can withstand. Under normal circumstances, a normal person would pass out from 6 G's in about 30 seconds or 8 G's in about 10 seconds. Perhaps the NASA study used a G-Suit to increase tolerance, but 10 G's otherwise is not good.
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Dick
Wait, your explanation as why it seems as though you are getting pushed out. doesn't make sense to me. Isn't it because technically you are not connected to the ride so you are moving like the key without a string thus the walls are pushing against you keeping you in place because you are technically flying away
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Wait, your explanation as why it seems as though you are getting pushed out. doesn't make sense to me. Isn't it because technically you are not connected to the ride so you are moving like the key without a string thus the walls are pushing against you keeping you in place because you are technically flying away
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Guddy
A spaceman in training is rotated in a seat at the end of the horizontal arm of length 5 metre. If he can withstand accelerations upto 9 g, then what is the maximum number of revolutions per second permissible? (Take g = 10 ms--2)
(A) 15. 5 rev/s
(B) 1. 35 rev/s
(C) 0. 675 rev/s
(D) 6. 75 rev/s
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A spaceman in training is rotated in a seat at the end of the horizontal arm of length 5 metre. If he can withstand accelerations upto 9 g, then what is the maximum number of revolutions per second permissible? (Take g = 10 ms--2)
(A) 15. 5 rev/s
(B) 1. 35 rev/s
(C) 0. 675 rev/s
(D) 6. 75 rev/s
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Neil
How is the human centrifuge pulling you in when the force from the motor to spin you would by how I understand it be grater then the normal force the ride/walls is exerting to keep you in is why you feel stuck? I'm hung up on that. Knowledge is power just trying to learn.
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How is the human centrifuge pulling you in when the force from the motor to spin you would by how I understand it be grater then the normal force the ride/walls is exerting to keep you in is why you feel stuck? I'm hung up on that. Knowledge is power just trying to learn.
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Lina
is the centripedal force equal to the acceleration of the spinning riders, or is it something different entirely? also, does increasing acceleration also increase the magnitude of the velocity or is it only the direction that affects it?
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is the centripedal force equal to the acceleration of the spinning riders, or is it something different entirely? also, does increasing acceleration also increase the magnitude of the velocity or is it only the direction that affects it?
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Hartej
I remember when i was back in 8th grade i couldn't understand a thing she said. I jus thought she was one bad teacher with crash course. now in tenth grade, this is the most clear explanation i have found yet. Thanks!
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I remember when i was back in 8th grade i couldn't understand a thing she said. I jus thought she was one bad teacher with crash course. now in tenth grade, this is the most clear explanation i have found yet. Thanks!
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Pranav
What about self weight (or mass? Doesn't that add to the centrifugal force? But what I don't understand is there is nothing that provides the initial outward push to achieve centrifugal motion.
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What about self weight (or mass? Doesn't that add to the centrifugal force? But what I don't understand is there is nothing that provides the initial outward push to achieve centrifugal motion.
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