QuarkQuarkQuark2001 Posted July 10, 2004 Posted July 10, 2004 It is found that the gravity force is about 9.8m/s2 It is usually omit the air resistance when we calculate the air resistance. One day, I asked myself how long does it take from jumping from the top of the building to the ground. And I did a bad calculation, only some seconds. I believed that it's wrong and I go to ask for information here
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