Question

Starting from the front door of your ranch house, you walk 50.0 m due east to your windmill, and then you turn around and slowly walk 40.0 m west to a bench where you sit and watch the sunrise. It takes you 28.0 s to walk from your house to the windmill and then 42.0 s to walk from the windmill to the bench. For the entire trip from your front door to the bench, what is your average velocity?

For the entire trip from your front door to the bench, what is your average speed?

Answer 1

`v=0.95 m/s`

Step-by-step explanation:

To calculate the average velocity, we need to use the formula:

`v=(x_(2)-x_(1)  )/(t_(2)-t_(1)  )`

Since the entire distance that the person walk

`x_(2)=(50+40)m=90m`

and,

`x_(1)=50m`

The time that the person takes to do the entire trip is

`t_(2)=42s+28s=70s`

Having that we can calculate the average speed

`v=((90-50)m)/((70-28)s)=  0.95m/s`