Question

Trig help please, 2 questions, 10 pts

Feel free to answer both or one


A flywheel rotates 450 times in 1 minute. How many degrees does it turn in 1 second?



a. 39 degrees

b. 2700 degrees

c. 18 degrees



The speed of a carousel is 4.3 revolutions per minute. James chooses a red horse. If the typical ride is 5 minutes, how far is his starting point is James when the ride is over?


a. 90 degrees

b. 0 degrees

c. 180 degrees

Answer 1

1. 2700 degrees. 450 rotations in on minute is 450(360) degrees per minute. If you divide this by 60 you get 2700.
2. 180 degrees. 4.3 rotations per minute is 4.3 times 360 degrees per minute. Multiply that times 5, and divide the answer by 360 and you get 21.5, which means he is 180 degrees from his starting point.