Question

The bell rings and a physics student heads to class. They stop to talk to a few friends. They slow

down to look at a poster on the wall. They get to class just as the bell rings. In the 5 minutes it took
them to get to class, their average speed was 1.4 m/s. How far did they walk?

Answer 1

420m

Step-by-step explanation:

Given parameters:

Time = 5minutes

Average speed = 1.4m/s

Unknown:

Distance covered = ?

Solution:

Speed is the rate of change of distance with time.

Mathematically;

Speed =
`(distance)/(time)`

Distance = speed x time

Insert the parameters and solve;

Convert the time to seconds;

1 minute = 60s

5 minute = 5 x 60 = 300s

So,

Insert the parameters and find the distance;

Distance = 300 x 1.4 = 420m