Something strange about new york city subways

  • #1
I've always noticed something strange about new york city subways. When they start to slow down, you feel a force pushing you forward, which seems fine. However, the subway car actually stops, you feel a jerk backward at that moment. Is there an explanation for this?
 

Answers and Replies

  • #2
russ_watters
Mentor
20,481
7,112


The concept is, in fact, called "jerk": http://en.wikipedia.org/wiki/Jerk_(physics [Broken])

Since you are leaning backwards you just about fall over since the rate of change of acceleration is faster than you can react to.
 
Last edited by a moderator:

Related Threads on Something strange about new york city subways

  • Last Post
Replies
8
Views
2K
  • Last Post
Replies
3
Views
731
  • Last Post
Replies
9
Views
917
Replies
9
Views
409
Replies
4
Views
705
Replies
14
Views
994
Replies
12
Views
529
Top