Question:
If a car travels at the speed of 72 km/hr, then the distance travelled by it in one second is:
If a car travels at the speed of 72 km/hr, then the distance travelled by it in one second is:
Show Hint
To convert km/hr to m/sec, multiply by \( \frac{5}{18} \). To convert m/sec to km/hr, multiply by \( \frac{18}{5} \).
Updated On: Mar 25, 2025
- 40 meter
- 30 meter
- 25 meter
- 20 meter
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The Correct Option is D
Solution and Explanation
Step 1: Convert speed to meters per second
- Given speed: \( 72 \) km/hr
- Convert km/hr to m/sec:
\[
1 \text{ km/hr} = \frac{5}{18} \text{ m/sec}
\]
\[
72 \times \frac{5}{18} = 20 \text{ m/sec}
\]
Step 2: Calculate distance in one second
- Distance traveled in 1 second = Speed (in m/sec)
\[
= 20 \text{ meters}
\]
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