Answer:
= 3*10^4m/s
Explanation:
We know that average speed is
Total distance covered/total time taken
So
We also know that it takes the earth 365day to completely revolve the sun
And the circular path covered can be calculated using formula for circumference of a circle 2πr
Where r is radius of earth given as 1.5*10^11m
So using
V= 2πr/t
We substitute and convert
= (2πx 1.5E11)/365 x( 1day/24hrs) x
(1hr /3600s)
= 3*10^4m/s
Answer:
Average speed of the earth relative to the sun = 30045.17 m/s
Explanation:
To calculate the average speed of the earth relative to the sun, we would have to divide the distance traveled from earth to sun by the time of travel. Thus;
Average speed of the earth = Distance travelled from earth to sun/total time of travel.
Now, formula for distance traveled by earth = 2πr
Where r is the average distance from the Earth to the sun and is given by 1.508 × 10^(11) m
Thus;
distance traveled by earth = 2π × 1.508 × 10^(11) = 947504344322.6816 m
Total time is time taken for the earth to complete a revolution around the sun. Time = 365 days
Converting this to seconds gives;
Since 24 hours make a day, we have;
365 × 24 × 60 × 60 = 3.1536 × 10^(7) s
Thus;
Average speed of the earth = 947504344322.6816/(3.1536 × 10^(7)) = 30045.17 m/s
