Calculating Athlete Speed in km/h
To find the athlete's speed in kilometers per hour (km/h), we first calculate the speed in meters per second (m/s) and then convert it.
Step 1: Calculate Speed in Meters per Second (m/s)
The formula for speed is:
$Speed = Distance / Time$
Given:
- Distance = 300 meters
- Time = 25 seconds
Plugging the values into the formula:
$Speed = 300 m / 25 s$
$Speed = 12 m/s$
Step 2: Convert Speed from m/s to km/h
To convert meters per second (m/s) to kilometers per hour (km/h), we use the conversion factor:
$1 m/s = 18/5 km/h$
Applying this conversion to the calculated speed:
$Speed (km/h) = Speed (m/s) * (18/5)$
$Speed (km/h) = 12 * (18/5)$
$Speed (km/h) = (12 * 18) / 5$
$Speed (km/h) = 216 / 5$
$Speed (km/h) = 43.2 km/h$
Conclusion
The athlete's speed is 43.2 km/h.
Similar Questions
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Important Questions from Speed Time and Distance
The average speed of a train is 180% of the average speed of a car. The car covers a distance of 990 km in 15 hours. The time taken (in hours) by the train to cover the distance of 891 km is:
If Rohit can cover a distance of 1188 km in 22 hours, then what is the speed of Rohit?
A train is moving at 72 km/hrs. The distance covers in 15 minutes by the train is:
If Sonu is driving a car at a speed of 20 m/s, then in how much time Sonu will cover a distance of 936 km?
A person crosses a 1600 m long street in 4 min. What is his speed (in km/h)?
