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31 votes
31 votes
The length of a planet's orbit around a star is approximately 18,950,000 km.

It takes the planet about 940 Earth days to complete a full orbit.
What is the planet's average speed in kmh-1 to 3sf?

User Lars Steen
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1 Answer

22 votes
22 votes

Answer:

The planet's speed is 18,950,000 km per 940 days

which equals

20,159.5744680851 kilometers per day

Dividing that by 24 gives us the planetary speed in km / hour which is

839.982269503546 kilometers per hour.

I have no idea what 3sf means so I can't answer that.

Explanation:

User Prajul
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