A projectile is launched with speed v0 at an angle ?0 above the horizon. Its motion is described in terms of position, velocity, and acceleration: x, y, vx, vy, ax, ay, respectively. (a) Which of those quantities are constant during the motion? (Select all that apply.) x y vx vy ax ay (b) Which are equal to zero throughout the motion? Ignore any effects of air resistance. (Select all that apply.) x y vx vy ax ay

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Projectile Motion