Did You Find Out? Get the Answer to the Riddle of E-News Issue No. 2, May 2022
The Bicycle Ride
Find out which light burns brighter!
A father goes on a bicycle ride with his son. While the father uses a man's bicycle with large wheels, the young son rides a child's bicycle with correspondingly small wheels. Both bicycles have the same type of dynamo (a small electrical generator for powering bicycle lights) and the same light with the same bulb. The tire's diameter is not relevant for the task and can be ignored.
Which light burns brighter when the bicycles are traveling at the same speed?
Solution
If father and son ride at the same speed and the diameter of the tires is ignored, the bicycles have the same circumferential speed, which is equal to the speed travelled. Both lights therefore burn with the same brightness. The child's bike has a higher angular speed and thus rotates more often, but the speed at the radius is the same as the big bike.
株式会社 ピーアンドエフ
〒220-0022
神奈川県横浜市西区花咲町6-145
横浜花咲ビル5F 日本
日本
sales@jp.pepperl-fuchs.com
+81 45 6249077
株式会社ピーアンドエフ
大阪府豊中市新千里東町1-5-3
千里朝日阪急ビル15階
〒560-0082 大阪
日本
sales@jp.pepperl-fuchs.com
+81 6 6836-5620
Pepperl+Fuchsはグローバルオートメーション市場向けにセンサや部品の開発を行っており、革新的かつ高品質な技術躍進のために日々努力を続けています。ドイツ・アメリカ・シンガポール・ハンガリー・インドネシア・ベトナムに生産拠点があり、すべての工場でISO9001認証を取得しています。