twice as long as at 45 high altitudes increases with altitude 4 You are to launch a rocket, from just above the ground, Pone of the following initial velocity vectors: (1) v, = 20î With (2) Vo = = 20i - 70j, (4) Vo = -20î – 70: , your coordinate system, x runs along level ground and y increases upward. (a) Rank the vectors according to the launch speed of the projectile, greatest first. (b) Rank the vectors according to the time of flight of the projectile, greatest first. -20i - 70j. In - 20î + 70j, (3) Vo %3D Vever ituations in which identical projectiles

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Projectile Motion