Question

A Ferris wheel with a diameter

of 40 m makes one revolution
every 20 minutes. What is its
average speed in meter/min?

Answer 1

6.3 m/min

Step-by-step explanation:

Circumference of a circle = 2πr

r = D/2 = 40m/2 = 20m

C = 2π(20m) = 125.7 m

speed = distance/time = (125.7 m) / (20 min) = 6.3 m/min