Question

Heather and Matt take 34 minutes to walk eastward along a straight road to a store 2.0km away. What is their average velocity in m/s

Answer 1

0.98 m/s eastward

Step-by-step explanation:

The average velocity is defined as:

`v=(d)/(t)`

where

d is the displacement

t is the time taken to do the displacement

Here the displacement of Heather and Matt is

d = 2.0 km = 2000 m

While the time interval is

`t =34 min \cdot 60 =2040 s`

So, their average velocity is

`v=(2000)/(2040)=0.98 m/s`

and the direction is the same as the displacement (eastward).