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34. Which of the following will hit the ground first assuming no air resistance?
   
A. Bullet fired horizontally at 300. m/s  from a 100. m cliff.
    
B. Arrow fired horizontally at 50.0 m/s from a 250. m cliff.
   
C. Baseball thrown horizontally at 40.0 m/s from a 200. m cliff.
   
D. Soccer ball kicked horizontally at 30.0 m/s from a 150. m cliff.
       
The amount of time a projectile is in the air is dependent of accelertion of gravity, initial velocity in the vertical direction, and the vertical displacement.

All of the answer choices are moving horizontally.  The vo vertical = 0 for all the choices.

Since all of the projectiles are on Earth (The assumption unless otherwise stated), they are only dependent on the vertical displacement.

B has the tallest cliff and is the Correct Answer.