Problema Solution
a person riding a Ferris wheel with a diameter of 74 feet travels once around the wheel in 0.5 minutes. What is the average speed of the rider In feet per second
Answer provided by our tutors
speed = distance / time
circumference of a circle = 2*PI*r where 'PI' is the constant approximated by '3.14' and 'r' is the radius
distance = 2*PI*(74/2)
0.5 minutes = 30 seconds
speed = (2*PI*(74/2))/30 = 7.75 feet per second
the average speed of the rider is 7.75 feet per second