Jenny runs on the cross-country team for school. She is working on her 10 mile race time. On Day 1, she runs 10 miles over 120 minutes. Find Jenny's average speed on Day 1! Hint: 120 minutes = 2 hours Average speed = miles per hour
Physics · High School · Thu Feb 04 2021
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To find Jenny's average speed, we need to use the formula for average speed, which is:
\[ \text{Average Speed} = \frac{\text{Total Distance}}{\text{Total Time}} \]
In this scenario, Jenny runs 10 miles over 120 minutes. Since speed is typically measured in miles per hour, we should convert the time from minutes to hours. There are 60 minutes in one hour, so 120 minutes is:
\[ 120 \text{ minutes} \div 60 \text{ minutes/hour} = 2 \text{ hours} \]
Now that we have the distance in miles and the time in hours, we can calculate the average speed:
\[ \text{Average Speed} = \frac{10 \text{ miles}}{2 \text{ hours}} \] \[ \text{Average Speed} = 5 \text{ miles/hour (mph)} \]
So, Jenny's average speed on Day 1 was 5 miles per hour.