• Support PF! Buy your school textbooks, materials and every day products via PF Here!

Cart in vertical loop

1. Homework Statement
A 330 kg roller coaster car sits on a horizontal track. Ahead of it is a vertical loop with radius of 6.85 m. The car is given an initial speed of 23.4 m/s and the car successfully traverses the loop. What is the maximum amount of energy taken away from the car by friction so that the car successfully travels through the loop? (Hint: think about the normal force that the track exerts on the car at the top of the loop, this should give you a minimum speed at the top of the loop.)

m=330
vo = 23.4
r=6.85

2. Homework Equations
??


3. The Attempt at a Solution
??
I am sorry but I have no clue as to how to approach this problem. Please point me in the right direction, hints and suggestions are extremely welcome.
I also find a Hint for the problem but i wasn't able to make as much use of this one as I thought.
(Hint: think about the normal force that the track exerts on the car at the top of the loop, this should give you a minimum speed at the top of the loop
 
Last edited:
Any help is appreicated.
 
1,065
10
Have you learned about work-energy theorem?
 

Related Threads for: Cart in vertical loop

  • Posted
Replies
5
Views
3K
  • Posted
Replies
1
Views
2K
  • Posted
Replies
17
Views
7K
  • Posted
Replies
6
Views
1K
  • Posted
Replies
3
Views
490
  • Posted
Replies
4
Views
592
  • Posted
Replies
8
Views
11K
  • Posted
Replies
1
Views
5K

Physics Forums Values

We Value Quality
• Topics based on mainstream science
• Proper English grammar and spelling
We Value Civility
• Positive and compassionate attitudes
• Patience while debating
We Value Productivity
• Disciplined to remain on-topic
• Recognition of own weaknesses
• Solo and co-op problem solving
Top