Wednesday, March 30th, 2011 at
6:56 am
I have a bad rear rim that has 6 cogs & I have access to 2 other rims that have 5 cogs. Is it possible to make them work with a little modification?
Friday, March 11th, 2011 at
10:09 pm
Bicycle racers have begun using solid disks for wheels rather than spokes and rims. What is their reasoning f?
Bicycle racers have begun using solid disks for wheels rather than spokes and rims. What is their reasoning for doing so?
A. A solid disk has a moment of inertia of ½ MR2 and a thin hoop has a moment of inertia of MR2, therefore the disk should be easier to start moving.
B. The solid disk has less mass.
C. The solid disk has less air resistance.