A projectile is fired horizontally with velocity vx at an altitude h. After hitting the ground, the projectile's net displacement in the horizontal direction is what?

Question

AP Physics Unit 2 Vectors and Projectiles

Answer 1

x = v_xt; y = h - gt²/2 = 0; t = √(2h/g); so, x = v_x√(2h/g); g = 9.8 m/s².