There's some reasons why people THINK bullets can pickup speed when skipping off water or any other surface.
1. when the bullet skips accross the water, the splashes become closer and closer together and there is less time between splashes. This creates the illustion of gaining speed.
2. When a bullet is bounced into a target, like a coyote or something, a bounced bullet does more damage than shooting straight into the animal. This can lead some people conclude that the bounced bullet picked up speed after the bounce.
3. occasionally you can hear a ricochet whine as it leaves the surface that deflected it. Some people will conclude that this is evidence of increased "power".
4. sometimes when an object in flight is following a high arced trajectory, and strikes a hard flat surface on the ground that is angled away from the direction of the projectile...it can change direction is such a way that will INCREASE it's horizontal component of it's velocity. This would appear to an onlooker as if the projectile gained speed. And in the horizontal direction, it did gain speed. But the absolute value of the velocity vector is not increased.
1. when the bullet skips accross the water, the splashes become closer and closer together and there is less time between splashes. This creates the illustion of gaining speed.
2. When a bullet is bounced into a target, like a coyote or something, a bounced bullet does more damage than shooting straight into the animal. This can lead some people conclude that the bounced bullet picked up speed after the bounce.
3. occasionally you can hear a ricochet whine as it leaves the surface that deflected it. Some people will conclude that this is evidence of increased "power".
4. sometimes when an object in flight is following a high arced trajectory, and strikes a hard flat surface on the ground that is angled away from the direction of the projectile...it can change direction is such a way that will INCREASE it's horizontal component of it's velocity. This would appear to an onlooker as if the projectile gained speed. And in the horizontal direction, it did gain speed. But the absolute value of the velocity vector is not increased.