Support Cycling

Belfast Cycle City – BBC Newsline TV – 12/2/10 – Belfast Friends of the Earth

Where’s the best place to get a fixed gear bicycle around Salt Lake City, Utah?

The questions pretty much says it all. I’d prefer Salt Lake City, but I’m certainly willing to travel.

Any specialty shop should carry them – Bingham Cyclery on 7th and 21st, or Guthries on 8th and 8th. Pretty much any shop other than big box. Good luck!

Cycling Friendly Cities

Backroad Bicycling Near New York City: 25 One-Day Bike Tours in Connecticut, New York, New Jersey, and Pennsylvania $10.11 Leave the inner city for biking the nearby country roads and lanes in the New York tristate area. When people think about New York City, very often the image that’s conjured up is of a vast metropolitan and polluted environment, with traffic for miles, and suburban bedroom communities that sprawl in all directions. However, author Gerry Brooks has taken a closer look and discovered the many del…

Backroad Bicycling in the Finger Lakes Region: 30 Tours for Road and Mountain Bikes, Fourth Edition $9.78 DAY PADDLING LONG ISLAND SOUND…

Bicycling Salt Lake City: A Guide to the Area’s Best Mountain and Road Bike Rides (Road Biking) $7.59 A guide to 33 of the best mountain and road biking rides in and around Salt Lake City, Utah. …

A student sitting on a stool that is free to rotate but is initially at res, holds a bicycle wheel.?

The wheel has a rotational velocity of 5 rev/s about a vertical axis. The rotational inertia of the wheel is 2 kg*m^2 about its center and the rotational inertiaof the student and wheel and platform about the rotational axis of the platform is 6 kg*m^2.

Initially only the wheel rotates and the angular momentum is;

Li = IW(o)

= (2)(5)

= 10 kg-m^2/s Vertical (up or down depending on the rotational direction of the wheel)

When the wheel is flipped the total angular momentum of the system has to be the same as Li.
The total consists of the flipped wheel -IW(o) plus the entire system rotating with some W

Lf = – IW(o) + I(t)W

= -10 + (6)W

Equating angular momentums;

10 = -10 + 6W

W = 20/6

= 3.33 rev/s (in same direction as original wheel’s direction)

Freerider Vector Mountain