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Question 29:
If a sprinter runs a distance of 100 metres in 9.83 seconds, calculate his average speed in km/h.?
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Question 29:If a sprinter runs a distance of 100 metres in 9.83 second...


Calculating Average Speed of the Sprinter

Given data:

  • Distance covered: 100 meters
  • Time taken: 9.83 seconds


Step 1: Convert time to hours

To calculate the average speed in km/h, we first need to convert the time taken from seconds to hours. There are 3600 seconds in an hour, so:

9.83 seconds = 9.83/3600 hours ≈ 0.00273 hours

Step 2: Calculate speed in m/s

Now, we can calculate the speed in meters per second using the formula:

Speed = Distance / Time

Speed = 100 meters / 0.00273 hours ≈ 36597.08 m/s

Step 3: Convert speed to km/h

Finally, to convert the speed from m/s to km/h, we need to multiply by 3.6 (since 1 m/s = 3.6 km/h):

Speed = 36597.08 m/s * 3.6 ≈ 131.63 km/h

Conclusion

The average speed of the sprinter is approximately 131.63 km/h when he runs a distance of 100 meters in 9.83 seconds.


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Question 29:If a sprinter runs a distance of 100 metres in 9.83 seconds, calculate his average speed in km/h.?
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