Given :
Cindy's house is 600 meters away. Jim runs as hard as he can with a speed of 5.3 m/s and Harry jogs with a speed of 8.2 m/s.
To Find :
How long will Harry have to wait for Jim when he gets to Cindy's house.
Solution :
Time taken by Harry to reach Cindy's house :
[tex]t_1=\dfrac{600}{8.2}\ s= 73.17\ s[/tex]
Time taken by Jim to reach Cindy's house :
[tex]t_2=\dfrac{600}{5.3}\ s=113.21\ s[/tex]
Time taken by Harry to wait for Jim is :
T = [tex]t_2-t_1[/tex] = 113.21 - 73.17 s = 40.04 s
Hence, this is the required solution.