All Questions
Tagged with rotational-dynamics centripetal-force
105
questions
18
votes
6
answers
9k
views
How can the centripetal force lead to objects flying apart?
I don't understand how the centripetal force, which always points to the center of our circular motion can cause this scenario:
We have a big stone which spins very fast, so fast that a part breaks ...
- 396
14
votes
7
answers
2k
views
Does a vehicle turning on a banked road need to turn its wheels?
A vehicle drives in a circle on a track at constant speed at with radius of curvature $\rho$. The vehicle's acceleration is $$a = \upsilon' T + \kappa (\upsilon)^2 N \\ = \kappa (\upsilon)^2 N.$$
The ...
- 309
11
votes
5
answers
4k
views
If you're holding on to a playground spinning wheel and then let go, is your trajectory straight or curved?
Let's say you are on one of those playground spinning wheels and then you let go. I've heard that you will fly off tangentially to the wheel, but do you really fly off in a straight line, since you ...
- 776
5
votes
4
answers
1k
views
Real concept behind bending of a cyclist while taking a turn
I am a high school student and I am very confused in a concept:
I came to this problem of bending of a cyclist while taking a turn , in the book that angle is calculated from the frame of reference of ...
- 470
4
votes
12
answers
2k
views
Basics of centripetal force
Suppose an object is moving in a circular path. We know that the net force that is working on that object is the centripetal force towards the center. But the object should have gone closer towards ...
- 1,179
4
votes
3
answers
993
views
Centrifugal force effect in a rotating frame of reference
If the centrepital force doesn't exist in a rotating frame of reference, then in this frame perspective, how can we explain why a ball tied to a string following a circular motion not to be pushed ...
- 113
4
votes
1
answer
6k
views
Tension in a ring rotating about its own axis
A ring of mass m and radius R is placed on a smooth horizontal table and is set rotating about its own axis in such a way that each part of the ring moves with a speed v. What is the tension in the ...
- 55
4
votes
4
answers
408
views
Is centripetal acceleration independent of linear acceleration in accelerated circular motion?
Can we say that there is a relationship between them, or are they independent of each other? why?
Like does $a_c=v^2/r$ imply $a_c$ and $a_{tangential}$ are related?
I am very confused by this ...
- 145
3
votes
2
answers
3k
views
What happens when the centripetal force is equal and opposite to the centrifugal force? [duplicate]
We say that centrifugal force is fictitious, yet we still use it in some problems. If the centrifugal force is equal and opposite to the centripetal force wouldn't that make the net force zero?
3
votes
2
answers
290
views
Normal force in a hypothetical rotating space station with artificial gravity
In order to simulate gravity on hypothetical space stations, one approach involves rotating the space station so that a centripetal force is present. Occupants within the space station's frame of ...
- 395
3
votes
3
answers
6k
views
Centripetal force of a rotating rigid body?
Consider someone pushing a roundabout in a playground. Initially the
roundabout is stationary, but when it is pushed, it rotates with
increasing rotational speed.
The force of the push is ...
- 804
3
votes
2
answers
324
views
Elongation of a rod hinged at the end
Suppose a rod is rotating in a horizontal frictionless plane, hinged at one of its ends. If the body is non rigid, it would change its length, but I am not sure whether it would elongate or get ...
- 35
3
votes
4
answers
192
views
Centripetal Force Formula Confusion
After I finished studying and trying to test my knowledge to see what I have learned, I realized I am confused about the centripetal force formula:
$$F_c= \frac{mv²}{R}$$
which I know is also equal to ...
- 288
3
votes
4
answers
2k
views
How is the centripetal force of a car when turning distributed over the wheels?
The centripetal force can easily be calculated as: $F = (M*v^2)/R = (M*v^2)*sin(\delta)/L$. But how is this force distributed over the (front and rear) wheels? My initial thought was to just divide it ...
- 31
3
votes
2
answers
901
views
Centripetal force in frame of reference of body moving In a circle
Suppose a body is moving in a circle about a fixed point. In the frame of reference of the body, is the centripetal force felt or is only the centrifugal force felt?
More generally, does a body only ...
- 1,803