# trig

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ferris wheel one has a 40ft diameter, revolves once every 30 seconds and is 5ft above ground. Ferris wheel two has a diameter of 20feet, revolves once every 15seconds and is 2 feet above the ground.

each angular velocity??

each linear velocity??

• trig -

angular velocity:
1st wheel : 2π rad/30 sec

2nd wheel : 2π radians/15 sec

linear velocity
1st wheel:
circumference = 2π(20) = 40π ft
linear velocity = 40π/30 ft/sec
= 4π/3 ft/se

2nd wheel:
circumf = 20π
linear vel. = 20π/15 ft/sec = 4π/3 ft/sec

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