Bicycle wheel precession


by Amith2006
Tags: bicycle, precession, wheel
Amith2006
Amith2006 is offline
#1
Apr14-10, 12:00 PM
P: 424
Almost everything is clear to me as far as the reason for the precession of a bicycle wheel suspended by a string from a rigid support is concerned. But I don't understand one thing about it. There are 2 forces acting on the system- one is the downward force of gravity at the center of mass of the wheel and the other is the tension in the string acting in the upward direction. It is said that the axle of the wheel manages to remain horizontal as the 2 forces get cancelled. How is it possible when the lines of action of the 2 forces are different?
Phys.Org News Partner Physics news on Phys.org
Physicists design quantum switches which can be activated by single photons
'Dressed' laser aimed at clouds may be key to inducing rain, lightning
Higher-order nonlinear optical processes observed using the SACLA X-ray free-electron laser
DaleSpam
DaleSpam is online now
#2
Apr14-10, 12:14 PM
Mentor
P: 16,477
The lines of action affect the net torque, but not the net force.
Amith2006
Amith2006 is offline
#3
Apr14-10, 01:06 PM
P: 424
You are right! Thanx.


Register to reply

Related Discussions
rotating bicycle wheel question Classical Physics 4
variable diameter bicycle wheel Classical Physics 3
Gyroscope/bicycle wheel question Classical Physics 7
Rotating Bicycle Wheel Introductory Physics Homework 2
spinning bicycle wheel Introductory Physics Homework 1