Roller coaster physics

  • Thread starter Jason03
  • Start date
  • #1
161
0
Im trying to figure when you have a rollercoaster or train, how are the forces different at the top of tracks compared to the bottom of the tracks.

How does this relate to setting up F=MA....and the Normal Force.

I know at the top you would have a feeling of weightlessness and at the bottom you are pushed into your seat greatly.

Thanks
 

Answers and Replies

  • #2
Dick
Science Advisor
Homework Helper
26,260
619
It doesn't relate to any real forces, it relates to the acceleration of the rider. At the top his acceleration is down, at the bottom it's up. The normal force has to balance both gravity and the acceleration of the rider.
 
  • #3
161
0
ok, im setting up a problem that asks for the force exerted on the seat of an 80 kg person. At the top, and at the bottom


So I am using this equ. ( i have r,v, m and g)

F=MA

N-mg = m (v^2/r)


so what would differ for the top and bottom?
 
  • #4
Dick
Science Advisor
Homework Helper
26,260
619
The direction of the v^2/r. It's directed towards the center of rotation. At the top, it's down. At the bottom, it's up. You have to keep track of the direction of v^2/r by hand.
 
  • #5
161
0
ok thanks....i will give that a try
 

Related Threads on Roller coaster physics

  • Last Post
Replies
19
Views
1K
  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
0
Views
2K
  • Last Post
Replies
1
Views
4K
  • Last Post
Replies
12
Views
5K
  • Last Post
Replies
5
Views
189
  • Last Post
Replies
3
Views
1K
  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
19
Views
4K
Replies
1
Views
816
Top