5. Projectile Motion - Galileo and Einstein

Full Projectile Path• A projectile is shot at some upward angle from theorigin: see animation.• Galileo tells us the horizontal motion is just steadyvelocity, the vertical motion is the same as that of aball thrown directly upwards.• Therefore1 2x = v t, y = v t − gt .0x0y2• Eliminating t gives a parabolic curve through O:( ) ( )0y 0x 0xy= v v x−g v x2 2/ /2 .