Average speed of a body is the ratio of distance traveled by a body in the given time.
Average speed of a body is the ratio of distance traveled by a body in the given time.
Given information-
The given 2-column table with 3 rows is,
Column 1 is labeled time elapsed (hours) with entries- 2, 4, 7.
Column 2 is labeled Distance Run (miles) with entries- 13.5, 27.5, 48.5.
The distance ran by Larry from hour 2 to hour 4 is,
[tex]d=27.5-13.5\\d=14[/tex]
Total time taken bay Larry from hour 2 to hour 4 is,
[tex]t=4-2\\t=2\rm hr[/tex]
Thus the average speed of Larry from hour 2 to hour 4 is,
[tex]s=\dfrac{d}{t} \\s=\dfrac{14}{2} \\s=7 \rm m/s[/tex]
Hence, the average speed of Larry from hour 2 to hour 4 is 7 m/s.
The distance ran by Larry from hour 4 to hour 7 is,
[tex]d=48.5-27.5\\d=21[/tex]
Total time taken bay Larry from hour 4 to hour 7 is,
[tex]t=7-4\\t=3\rm hr[/tex]
Thus the average speed of Larry from hour 4 to hour 7 is,
[tex]s=\dfrac{d}{t} \\s=\dfrac{21}{3} \\s=7 \rm m/s[/tex]
Hence, the average speed of Larry from hour 4 to hour 7 is 7 m/s.
Hence
Learn more about the average speed here;
https://brainly.com/question/4931057
Larry recorded his time as he ran. What was his average speed from hour 2 to hour 4?
✔ 7 mph
What was his average speed from hour 4 to hour 7?
✔ 7 mph
Did he speed up or slow down?
✔ stayed the same
