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Chapter 2: Q10. (page 43)

Every year, the earth travels about 109km as it orbits the sun. What is the earth鈥檚 average speed in km/h?

Short Answer

Expert verified

The earth鈥檚 average speed is 1.14脳105kmh.

Step by step solution

01

Step 1. Calculation of the total hours in one year

The earth鈥檚 orbit is a two-dimensional plane in which it rotates around the sun. The earth takes 365 days to complete one complete cycle in its orbit.

Given data.

The traveled distance of the earth in a year is 109km.

Now, you know that there are 365 days in a year and 24 hours in a day. Then,

1year=365day=365day脳24hour1day=8760hour

02

Step 2. Calculation of average speed

Now, you know that

Averagespeed=TotaldistanceTotaltime=109km8760h=1.14脳105kmh

Therefore, the earth鈥檚 average speed is 1.4脳105kmh.

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