Question

if you walk 200 meters in 1 minute, 400 meters in 4 minutes and 800 meters in 10 minutes find your average velocity for the whole walk

Answer 1

First, calculate each velocity:

`v=(distance)/(time)`

so:

`v1=(200m)/(1min)`
`v2=(400m)/(4min)=(100m)/(min)`
`v3=(800m)/(10min)=(80m)/(min)`

Now calculate the average between the 3 velocities:

`av\text{ }v=(200+100+80)/(3)=(126.67m)/(min)`

The answer is 126.67 m per minute.