Site for children


J. Perelman
"Entertaining physics". Book 1.
Chapter 1. Speed. The addition of movements

THE SLOWEST PART OF THE WHEEL

So, not all points of the moving wheels of the carts are moved equally quickly. What part of the rolling wheel just moves slower?

It is easy to think that slower move all the points of the wheels that are currently in contact with the ground. Strictly speaking, at the moment of contact with the soil of these wheels perfectly still.

All of the above is true only for the wheels rolling, and not for such, which rotates on a fixed axis. In flight the wheel, for example, the top n bottom of the rim are moving with the same speed.

Entertaining physics J. Perelman

 




System Orphus

SUPPORT THE SITE!

Did you like our site and you would like to support it? It's very simple: tell your friends about us!
Read MORE

  © 2014 All children