My question is that if i throw a feather and a stone from a tall building will they hit ground at the same time and g=9.8m/s2 so where does the value of this g exists? near the poles or at the equator?

Asked by  | 17th Sep, 2011, 12:00: AM

Expert Answer:

Suppose that air resistance could somehow be eliminated such that neither the stone nor the feather would experience any air drag during the course of their fall. Both the objects (regardless of their mass) experience the same acceleration when in a state of free fall.
However, in the presence of air resistance, the stone is sure to fall faster.
 
At the equator its value is about 9.78 m/s2 and at the poles it is 9.83 m/s2. Its mean value is taken as 9.8 m/s2 for all calculations.

Answered by  | 18th Sep, 2011, 04:16: PM

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