<quote> However it also means that in case of bullets shot into the air they come down with only gravitational velocity. </quote>
And this velocity would equal the velocity at which the bullet left the barrel of the gun (assuming a vacuum here for the moment). Gravity is going to apply a steady force to start slowing down the bullet until it reaches a speed of 0 at height X. It is then going to apply the same force over the same distance until it reaches the ground. Thus it is going to have the same speed as when it left the gun. Now once we apply an atmosphere we will get a "terminal velocity" where the friction of the air is going to first slow the bullet down faster then just gravity alone, so the bullet will not reach the height it would have in a vacuum, then on the return trip the bullet will reach a speed where the friction of the air cancels out in further acceleration from gravity. But this speed is still plenty fast to embed that bullet into your body if you are in its path once it returns to earth. -------------- Ian Skinner Web Programmer BloodSource www.BloodSource.org Sacramento, CA --------- | 1 | | --------- Binary Soduko | | | --------- "C code. C code run. Run code run. Please!" - Cynthia Dunning ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Message: http://www.houseoffusion.com/lists.cfm/link=i:5:194871 Archives: http://www.houseoffusion.com/cf_lists/threads.cfm/5 Subscription: http://www.houseoffusion.com/lists.cfm/link=s:5 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.5 Donations & Support: http://www.houseoffusion.com/tiny.cfm/54
