- #1
binbagsss
- 1,291
- 12
Does the magnitude of centripetal force as well as the tension change in a vertical circle?
Vertical Circles: Centripetal Force & Tension
AI Thread Summary
In a vertical circle, the magnitude of centripetal force remains constant, but the tension in the string varies depending on the position of the object. At the highest point, the tension plus gravitational force contributes to the centripetal force, while at the lowest point, the tension minus gravitational force provides the necessary centripetal force. This variation in tension is due to the changing direction of gravity relative to the rotating body. The speed of the object can change due to energy conservation principles, as potential and kinetic energy interchange during the motion. Understanding these dynamics is crucial for analyzing forces in vertical circular motion.
- #2
cupid.callin
- 1,130
- 1
The net centripetal force don't change but as the direction of gravity wrt the rotating body change .. tension change
like, T+mg provide centripetal force when body is at highest point but its T-mg at lowest point
like, T+mg provide centripetal force when body is at highest point but its T-mg at lowest point
- #3
binbagsss
- 1,291
- 12
cupid.callin said:
f=mv^2/r, why does v changee thenn?
Kindly see the attached pdf. My attempt to solve it, is in it.
I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction.
I'm not able to figure out, why my solution is wrong, if it is wrong .
TL;DR Summary: I would like to know the voltmeter readings on the two resistors separately in the picture in the following cases , When one of the keys is closed When both of them are opened (Knowing that the battery has negligible internal resistance)
My thoughts for the first case , one of them must be 12 volt while the other is 0
The second case we'll I think both voltmeter readings should be 12 volt since they are both parallel to the battery and they involve the key within what the...
My initial calculation was to subtract V1 from V2 to show that from the perspective of the second aircraft the first one is -300km/h.
So i checked with ChatGPT and it said I cant just subtract them because I have an angle between them. So I dont understand the reasoning of it. Like why should a velocity be dependent on an angle? I was thinking about how it would look like if the planes where parallel to each other, and then how it look like if one is turning away and I dont see it. Since...
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