10. Bicycle speedometers are programmed based on the number of revolutions the wheel turns per second. A bike wheel spins 480 times in 1 minute. What is the rate per second?
a. 1 revolution per second
b. 8 revolutions per second
c. 60 revolutions per second
d. 480 revolutions per second
ans. b (480 turns/60sec = 8 turns/sec)
correct
To solve this problem, you need to calculate the rate per second at which the bike wheel spins.
Step 1: Start with the given information that the bike wheel spins 480 times in 1 minute.
Step 2: Convert minutes to seconds. Since there are 60 seconds in 1 minute, multiply the number of minutes by 60 to get the number of seconds.
1 minute * 60 seconds/minute = 60 seconds
Step 3: Divide the total number of wheel turns (480) by the total number of seconds (60) to find the rate per second.
480 turns / 60 seconds = 8 turns per second
Therefore, the rate per second at which the bike wheel spins is 8 revolutions per second. So, the correct answer is b.