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April 23, 2014

April 23, 2014

Posted by **Ami** on Thursday, September 9, 2010 at 12:54am.

1)What is the radial acceleration of an object at the earth's equator? Give your answer in m/s^2

2) What is the radial acceleration of an object at the earth's equator? Give your answer as a fraction of g.

3) If a_rad at the equator is greater than g , objects would fly off the earth's surface and into space. What would the period of the earth's rotation have to be for this to occur?

- physics -
**drwls**, Thursday, September 9, 2010 at 2:23am1) acceleration = r w^2

where w is the angular velocity in radians per second

w = 2 pi/(24*3600)

r = 6380 km

2) Divided the acceleration by 9.8 m/s^2 per g

3) Solve g = r w^2 for the w value that lets objects fly off the earth.

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