Question

Estimate and determine the order of magnitude of the circumference of the Earth in miles and the speed of a sailboat in miles per hour. The Earth's circumference is 10^4 mile and the the speed of a sailboat is 10^1 mile/hour.

Answer 1

The time it would take to sail around the world in a sailboat is 1000 hour.

Step-by-step explanation:

It is given that,

The circumference of the Earth,
`d=10^4\ mile`

The speed of a sailboat,
`v=10\ mile/hour`

We need to find the time it would take to sail around the world in a sailboat. It can be calculated using the definition of velocity. It is given by :

`v=(d)/(t)`

`t=(d)/(v)`

`t=(10^4\ mile)/(10\ mile/hour)`

t = 1000 hour

So, the time it would take to sail around the world in a sailboat is 1000 hour. Hence, this is the required solution.