A figure skater is warming up on the rink. She does a lap of a 100m rink. She completes the laps in 3 minutes. What was her speed?
Answer
a. 33.3 m/min
b. 300 m/min
c. 66.7 m/min
my answer b.300 m/min ?????
To calculate the figure skater's speed, you need to find the distance traveled (100m) and divide it by the time it took to complete the lap (3 minutes).
The formula for speed is speed = distance / time.
In this case, the distance traveled is 100m and the time taken is 3 minutes. So, the calculation would be:
Speed = 100m / 3 minutes
To convert minutes to seconds, you need to multiply the time (3 minutes) by the conversion factor of 60 seconds per minute:
Speed = 100m / (3 minutes * 60 seconds/minute)
Simplifying the equation gives:
Speed = 100m / 180 seconds
Calculating the value gives:
Speed ≈ 0.5556 m/s (rounded to four decimal places)
Now, we need to convert the speed from meters per second to meters per minute. Since there are 60 seconds in a minute, we can multiply the speed (0.5556 m/s) by 60 to get the speed in meters per minute:
Speed ≈ 0.5556 m/s * 60 seconds/minute
Simplifying the equation gives:
Speed ≈ 33.3333 m/minute (rounded to four decimal places)
Therefore, the correct answer is a. 33.3 m/min.