Roller coaster friction problem?

AI Thread Summary
The discussion revolves around calculating the minimum coefficient of friction required to prevent falling off a spinning ride called the "Barrel of Fun." The ride operates as a vertical cylinder, and the problem involves determining the necessary friction after the floor drops out. Participants agree that finding the rotational velocity and converting it to acceleration is essential for solving the problem. One user calculated a coefficient of friction of 658.69, prompting a request for clarification on the calculation process. The conversation highlights the challenges students face with complex problems that exceed classroom instruction.
bohobelle
Messages
7
Reaction score
0

Homework Statement


You're at the amusement park and your friend wants to go on the "Barrel of Fun," where the ride is a cylinder with a vertical axis. You stand against the wall and after the ride is spinning fast enough, the floor drops out beneath you. What is the minimum coefficient of friction necessary to keep you from falling down once the floor is gone? The ride takes two seconds per revolution.


Homework Equations


Moment of intertia of a cylinder = MR^2


The Attempt at a Solution


I honestly have no idea what I'm doing! My teacher tends to teach us one lesson in class and then give us a ridiculously complicated problem that we are not prepared to do for homework.

I think that you need to find rotational velocity and then transform that into acceleration, and then find friction from that, but I am not sure?
 
Physics news on Phys.org
Your thinking is correct.
 
voko said:
Your thinking is correct.

How would I get from acceleration to friction?
 
I got 658.69 as the coefficient of friction, does this seem correct?
 
Explain how you got that.
 
Thread 'Voltmeter readings for this circuit with switches'

Thread 'Voltmeter readings for this circuit with switches'

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...
View full post »
Thread 'Struggling to make relation between elastic force and height'

Thread 'Struggling to make relation between elastic force and height'

Hello guys this is what I tried so far. I used the UTS to calculate the force it needs when the rope tears. My idea was to make a relationship/ function that would give me the force depending on height. Yeah i couldnt find a way to solve it. I also thought about how I could use hooks law (how it was given to me in my script) with the thought of instead of having two part of a rope id have one singular rope from the middle to the top where I could find the difference in height. But the...
View full post »

Similar threads

Minimum Speed for a Roller-Coaster Car to Complete a Loop without Seat Belts
Replies
12
Views
3K
Roller coaster problem involving velocity
Replies
2
Views
2K
Calculating Frictional Force on a Roller Coaster: Solving for Final Velocity
Replies
4
Views
2K
Simulated circular motion on a roller coaster
Replies
5
Views
3K
A different type of roller coaster loop problem
Replies
16
Views
2K
Roller Coaster Friction Problem
Replies
4
Views
3K
What's Happening on this Roller Coaster?
Replies
1
Views
3K
Finding the Velocity of a Frictionless Roller Coaster at the Top of a Loop
Replies
4
Views
3K
Roller Coaster Problem Help NEEDED
Replies
1
Views
3K
Conservation of Mechanical Energy on a Roller Coaster
Replies
11
Views
6K

Hot Threads

Recent Insights

Back
Top