The length of a planet's orbit around a star is approximately 29,870,000 km.
It takes the planet about 1670 Earth days to complete a full orbit.
What is the planet's average speed in kmh-1 to 3sf?
Answers
Answer:
Question: “The length of a planet's orbit around a start is approximately 24130000 km. It takes the planet about 1440 Earth days to complete a full orbit. What are the planets average speed in kmh^-1 to 3sf?”
Typically, the motion of a planet around a massive central star or other object is an ellipse. Its speed in that orbit, with the star at one focus, varies as Kepler observed. (Ref: “Kepler's law of planetary motion proof”) Just averaging the total distance traveled and the elapsed time will produce an inaccurate speed.
However, given only the information in the question, an estimate of the average speed is given by:
( 24,130,000 km ) / (1440 days X 24 hours per day ) + average km/hr.
Step-by-step explanation:
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Answer:
745 kmh^-1
Step-by-step explanation:
s=d/t 1 day = 24 hours (times 24)
1670 days into hours (x24)
=29,870,000/(1670x24)
Plug into Calculator
=745.259481
Round to 3sf
My Answer is 745kmh^-1