the longest distance in a field and track event is the 10km run. the record holder for the women's 10km run is Wang Junxia of china. Assuming that she ran a distance of 10.0 km with an average f 5.644 m/s, what was her time?
To find the time it took for Wang Junxia to run a distance of 10.0 km with an average speed of 5.644 m/s, we can use the formula:
Time = Distance / Speed
Plugging in the values:
Time = 10,000 meters / 5.644 m/s
To find the time, divide the distance by the speed:
Time = 10,000 / 5.644 ≈ 1771.55 seconds
Therefore, the time it took for Wang Junxia to run 10.0 km was approximately 1771.55 seconds.
To find the time taken by Wang Junxia to complete the 10-kilometer run, we can use the formula:
Time = Distance / Speed
Given:
Distance = 10.0 km
Speed = 5.644 m/s (Note: we will convert this to km/h for consistency)
First, let's convert the speed from m/s to km/h:
1 meter = 0.001 kilometers (km)
1 hour = 3600 seconds
So, to convert m/s to km/h, we multiply the speed by 3.6:
Speed (km/h) = Speed (m/s) * 3.6
Speed (km/h) = 5.644 m/s * 3.6 = 20.3184 km/h
Now, we can calculate the time taken by Wang Junxia:
Time = Distance / Speed = 10.0 km / 20.3184 km/h
Dividing 10.0 km by 20.3184 km/h gives us:
Time ≈ 0.4919 hours
To convert this time to minutes and seconds, we can multiply it by 60:
Time (in minutes) = 0.4919 hours * 60 ≈ 29.514 minutes
Finally, we can convert the decimal part of the minutes to seconds:
Decimal part of minutes = 0.514 * 60 ≈ 30.84 seconds
Therefore, the approximate time taken by Wang Junxia is 29 minutes and 31 seconds to complete the 10-kilometer run.