The discussion revolves around confirming the acceleration due to gravity, commonly approximated as 9.8 meters per second squared. Participants explore methods for measuring this value through experiments involving dropping objects and considering factors such as air resistance and variations in gravitational acceleration based on location.
Several participants have offered insights into the challenges of measuring gravity accurately, including the impact of air resistance and the necessity of specific conditions for precise results. There is acknowledgment of the limitations of common methods and a recognition of different experimental approaches being considered.
Participants note that the measurement of gravity can be affected by environmental factors such as air friction and geographical variations, which are under discussion but not resolved.
kushan said:the experiment won't give exactly 9.8 , since air friction is also there .
You need vacuum or vacuum like condition for 9.8 .
And g also varies with latitudes .
kushan said:, you need to eliminate air resistance
Integral said:Your measurement errors will be greater then the effects of air resistance unless you have some pretty exotic equipment.
The traditional method for doing this was to fasten a strip of waxed paper tape to your weight and feed it through a sparker with a know rate. The distance between the dots give you the displacement in fixed time intervals.