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try to shoot any bow point blank to some hard wood plank - it would not penetrate so deep as from distance.
i am SURE that bullet had less power point blank, than on distance. i know that issue "my-friend-policeman-said-so" isn't good, but, "he told me so"
yes, it loses the power, id est cinetic energy transferes to potential. at the highest point of it's trajectory curve, potential energy starts to transfer to cinetic - the arrow gains more and more power. at one point, it should have the same power as on the begining.Likewise, at the point where a bullet completely leaves a gun the bullet is at its max power. The bullet cannot gain any more power (speed) after this point because there is nothing to transfer more power to it. Thus, from this point on the bullet, like the arrow, will containue to lose power.
yes, it loses the power, id est cinetic energy transferes to potential. at the highest point of it's trajectory curve, potential energy starts to transfer to cinetic - the arrow gains more and more power. at one point, it should have the same power as on the begining.
now... why are archers and artillery on higher ground? for the same reason why arrow stick into dirt when you let it drop from your hand (YOU did NOT give it any energy)
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