Re: Liquid Ballast vs. Iron Weights

Posted by Ron on July 29, 2004 at 07:29:41 from (69.179.21.81):

In Reply to: Re: Liquid Ballast vs. Iron Weights posted by 720Deere on July 29, 2004 at 07:09:30:

Assuming you and your dad are on earth, he's right.

This nonsense about Galileo's "law of fall" is often quoted but rarely understood. Physics teaches us that two bodies of different weight fall (towards the center of earth) at exactly the same rate IN A VACUUM (no atmosphere). That condition does not exist anywhere on earth.

Therefore, the rate of fall of any two objects is based largely upon aerodynamics, at least until terminal velocity is achieved. Due to the mass/surface area ratio of the human body, the heavier guy falls faster than the lighter guy, assuming both are in the same relative position (feet first, fetal, limbs extended, etc.)

Now here's one to chew one. A bullet is dropped by hand onto the ground from 5'. At exactly the same time, a bullet is fired from a rifle pointed directly at the horizon. The rifle is at 5' from the ground. Which bullet hits the ground first?

Follow Ups:

• Re: Liquid Ballast vs. Iron Weights jimNCal 21:36:22 07/29/04 (0)
• Re: Liquid Ballast vs. Iron Weights 720Deere 08:03:03 07/29/04 (0)
• Re: Liquid Ballast vs. Iron Weights Allan in NE 07:33:34 07/29/04 (1)
  • Re: Liquid Ballast vs. Iron Weights Ron 07:48:08 07/29/04 (0)

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