Website Statistics Exercice 17 p 73 The observation wheel turns slow enough and has always the same speed to allow the people to embark while its moving A complete turn takes thir

Exercice 17 p 73 :
The observation wheel turns slow enough and has
always the same speed to allow² the people to
embark while it's moving. A complete turn takes
thirty minutes. The wheel has a diameter of 400 feet,
about two hundred times the size of a bicycle wheel.
Vocabulaire
1 wheel: roue
2 to allow permettre
Données :
.1 feet = 0,3048 mètre.
Longueur L d'un cercle de rayon r: L=2××г.
1. Calculer la vitesse en mètre par seconde d'une
nacelle du London Eye.
Coup de pouce p. 155
2. Décrire le mouvement d'une nacelle de la roue.

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