Zanarh

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2. Acceleration toward Earth

From what I understand, it is easier to launch a rocket at the equator because of lower gravitational force (since the equator is furthest [21km] away from the centre of the Earth than any other place). Does this mean that the calculations here (Acceleration Towards Earth) are correct since they are based on the equatorial radius? But I found on wikipedia that http://en.wikipedia.org/wiki/Equatorial_bulge In my calculations, I assumed that perceived gravity due to the rotation of the Earth on an object is directed outwards from the centre of the Earth. If this is true for
3. Acceleration toward Earth

Hi there, I'm new to this forum. Nice to meet you! Well, basically, I'm studying under the IB course and I have Mathematics, Physics and Economics as my higher level subjects. Now that I just finished my exams yesterday, I chanced upon MIT's OCW Courses on Physics by Professor Walter Lewin. After watching the lecture about centripetal acceleration, I had a random thought about the acceleration of objects on the surface of the Earth and wrote a short paper about it. However, I do not have any much knowledge beyond the basics, and I'm not entirely sure about the resultant acceleration. T
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