Question

A tortoise is walking in the desert. It walks

6.4 meters in
4 minutes. What is its speed?

Answer 1

The speed of the tortoise can be calculate as follows:

`v=(S)/(t)`

where

S is the distance travelled by the tortoise

t is the time taken

In this problem, S=6.4 m, while we should convert the time into seconds:

`t=4 min= 4\cdot 60 =240 s`

Substituting the numbers into the equation, we find the speed:

`v=(S)/(t)=(6.4 m)/(240 s)=0.027 m/s`

Answer 2

It's speed is exactly 6.4 meters per 4 minutes.

In the more familiar units, that's

(6.4 m / 4 min) = 1.6 meters per minute

(1.6 m / min) (100 cm/m) ( 1 min / 60 sec) = 2-2/3 cm per sec.

(1.05 inch per second, rounded)

(160.3 furlongs per fortnight, rounded)