Question

You float 2000 feet along a lazy river water ride. The ride takes less than 10 minutes. Give two examples of possible times and speeds.

Answer 1

200 ft/m or every minute there is 200 ft traveled.

Answer 2

The speed can be expressed like less than 200 feet per minutes.

The speed would be 222.22 feet per minute or less.

Explanation:

We know that the distance traveled is

`d=2000ft`

The time that took to travel this distance is

`t<10min`

This means that the time could be 9 minutes, 8 minutes, 7 minutes. It can be a number between 0 and 10.

The speed is defined as

`s=(d)/(t)`

Replacing all values, we have

`s=(2000ft)/(10min)= 200 ft/min`

Therefore, the speed can be expressed like less than 200 feet per minutes.

Another possible example is using a time of 9 minutes

`s=(2000ft)/(9min)= 222.22 ft/min`

In this case, the speed would be 222.22 feet per minute or less. Notice that this time the speed is not "less than", we have to include a equality relation, because we already used a time that's inside the interval of time given by the problem.