- #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?
I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19.
For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
Let's declare that for the cylinder,
mass = M = 10 kg
Radius = R = 4 m
For the wall and the floor,
Friction coeff = ##\mu## = 0.5
For the hanging mass,
mass = m = 11 kg
First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on.
Force on the hanging mass
$$mg - T = ma$$
Force(Cylinder) on y
$$N_f + f_w - Mg = 0$$
Force(Cylinder) on x
$$T + f_f - N_w = Ma$$
There's also...
This problem is two parts. The first is to determine what effects are being provided by each of the elements - 1) the window panes; 2) the asphalt surface. My answer to that is
The second part of the problem is exactly why you get this affect.
And one more spoiler:
Similar threads
Hot Threads
-
Collision of a bullet on a rod-string system: query
- Started by palaphys
- Replies: 71
- Introductory Physics Homework Help
Recent Insights
-
Insights Quantum Entanglement is a Kinematic Fact, not a Dynamical Effect
- Started by Greg Bernhardt
- Replies: 7
- Quantum Physics
-
Insights What Exactly is Dirac’s Delta Function? - Insight
- Started by Greg Bernhardt
- Replies: 0
- General Math
-
Insights Relativator (Circular Slide-Rule): Simulated with Desmos - Insight
- Started by Greg Bernhardt
- Replies: 1
- Special and General Relativity
-
Insights Fixing Things Which Can Go Wrong With Complex Numbers
- Started by PAllen
- Replies: 7
- General Math
-
Insights Fermat's Last Theorem
- Started by fresh_42
- Replies: 91
- General Math
-
Insights Why Vector Spaces Explain The World: A Historical Perspective
- Started by fresh_42
- Replies: 0
- General Math