- #1
Moebius
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Hello, I'm having a problem with the concept of one question, which goes like this:
They gave the radius of Earth on the equator as 6.4 * 10^6..
Therefore,
v = (2r * 6.4 * 10^6) / (24 * 3600)
= 465 m/s
My question is this:
Why can't we use the equation a = v^2/r to solve this question?
As in 9.8 = v^2/(6.4 * 10^6)
v^2 = (9.8)(6.4 * 10^6)
v = root of [(9.8)(6.4 * 10^6)]
The answer is different, and I don't really understand why. Would anyone explain this for me?
Thanks in advance. :)
Calculate the linear speed of a point on the Earth's equator due to the Earth's rotation.
They gave the radius of Earth on the equator as 6.4 * 10^6..
Therefore,
v = (2r * 6.4 * 10^6) / (24 * 3600)
= 465 m/s
My question is this:
Why can't we use the equation a = v^2/r to solve this question?
As in 9.8 = v^2/(6.4 * 10^6)
v^2 = (9.8)(6.4 * 10^6)
v = root of [(9.8)(6.4 * 10^6)]
The answer is different, and I don't really understand why. Would anyone explain this for me?
Thanks in advance. :)