If a runner covers 300 meters in 45 seconds, what is his speed in km/h?

₹0.0

Question: If a runner covers 300 meters in 45 seconds, what is his speed in km/h?

Options:

Correct Answer: 6 km/h

Solution:

Speed = distance/time = 300 m / 45 s = 6.67 m/s. In km/h = 6.67 * 18/5 = 24 km/h.

If a runner covers 300 meters in 45 seconds, what is his speed in km/h?

If a runner covers 300 meters in 45 seconds, what is his speed in km/h?

Step 1: Identify the distance covered by the runner, which is 300 meters.
Step 2: Identify the time taken by the runner, which is 45 seconds.
Step 3: Calculate the speed in meters per second (m/s) using the formula: Speed = distance / time.
Step 4: Substitute the values into the formula: Speed = 300 meters / 45 seconds.
Step 5: Perform the division: 300 / 45 = 6.67 m/s.
Step 6: Convert the speed from meters per second (m/s) to kilometers per hour (km/h).
Step 7: Use the conversion factor: 1 m/s = 18/5 km/h.
Step 8: Multiply the speed in m/s by the conversion factor: 6.67 m/s * (18/5).
Step 9: Calculate the result: 6.67 * 3.6 = 24 km/h.

Speed Calculation – Understanding how to calculate speed using the formula speed = distance/time.
Unit Conversion – Converting speed from meters per second (m/s) to kilometers per hour (km/h) using the conversion factor.