Find the best solutions to your questions at Westonci.ca, the premier Q&A platform with a community of knowledgeable experts. Our Q&A platform offers a seamless experience for finding reliable answers from experts in various disciplines. Join our platform to connect with experts ready to provide precise answers to your questions in different areas.
Sagot :
ANSWER:
5.78 m/s or 20.81 km/h
STEP-BY-STEP EXPLANATION:
A marathon is a long-distance race that consists of traveling a distance of 42195 meters.
Now, we calculate the total time in seconds, knowing that:
1 hour is 3600 seconds
1 minute is 60 seconds
Therefore:
[tex]\begin{gathered} t=2\text{ h}\cdot\frac{3600\text{ s}}{1\text{ h}}+1\text{ m}\cdot\frac{60\text{ s}}{1\text{ m}}+39\text{ s} \\ t=7299\text{ s} \end{gathered}[/tex]The speed is equal to the distance traveled in a given time, therefore:
[tex]\begin{gathered} s=\frac{d}{t}=\frac{42195}{7299} \\ s=5.78\text{ m/s} \\ s=5.78\frac{m}{s}\cdot\frac{3600\text{ s}}{1\text{ h}}\cdot\frac{1\text{ km}}{1000\text{ m}} \\ s=20.81\text{ km/h} \end{gathered}[/tex]Average speed is 5.78 m/s or 20.81 km/h
We appreciate your time. Please come back anytime for the latest information and answers to your questions. We hope you found what you were looking for. Feel free to revisit us for more answers and updated information. Keep exploring Westonci.ca for more insightful answers to your questions. We're here to help.