Due to Earth's rotation, a point on the earth's equator travels about 1700 km every hour. How far does a point on the equator travel in 2 days?
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Answers
Step-by-step explanation:
2 days = 48 hr
1700 × 48 = ( plz calculate )
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Answer:
The Need for Speed
A major conceptual barrier to accepting the rotation and revolution of the Earth is that the speeds required are enormous.
Speed of the Earth's Rotation at the Equator:
Circumference of the Earth at the Equator = 40,000 kilometers
Time to complete one Rotation = 24 hours
Speed of Rotation = Distance/Time = 40,000 km / 24 hr = 1670 km/hr
The speed of revolution around the Sun is even larger:
Speed of the Earth's Revolution around the Sun:
Radius of the Earth's Orbit = 1 AU = 150,000,000 kilometers
Circumference of the Earth's Orbit = 2*pi*R = 942,000,000 kilometers
Time to complete one Orbit = 365.2422 days = 8766 hr
Speed of Revolution = Distance/Time = 942,000,000 km / 8766 hr = 107,000 km/hr = 30 km/sec
In the typical time it takes to read this sentence (about 15 seconds), the Earth will have moved through space by about 450 km, or about the width of the state of Ohio.
Consider that the fastest things people had experienced prior to the invention of steam power moved at speeds of only a few 10s of km/hr (horses, fast ships). Even the fastest winds are only 150 km/hr.
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