Answer:average speed of trip is 25 mph
Explanation:
Given
Total distance is 25 miles (i.e. from home to school and then back to home)
Total time taken = 1 hour
so average speed[tex]=\frac{Distance}{ Time\ Taken}[/tex]
[tex]S_{avg}=\frac{25}{1}=25 mph[/tex]
average velocity[tex]=\frac{Displacement}{Time\ taken}[/tex]
displacement is zero here
[tex]V_{avg}=\frac{0}{1} =0 mph[/tex]
Velocity for return trip is different as compared to way trip as velocity is a vector quantity so it will be different for both trip.