Velocity question

[752779]

1. Can Anyone explain the concept?
   
   At the edge of a building, one ball (#1) is thrown up with a given speed. At the same time, a similar ball (#2) is thrown down with the same speed. What is the comparison of the velocities of these two balls at the ground?
   a.) The velocity of #1 is greater than #2
   b.) The velocity of #1 is less than #2
   c.) The velocity of #2 is opposite of #1
   d.) The velocity of #2 is the same as #1
   
   

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[betterfuture]

Well if they both stayed in the air at the same amount of time then the final velocity should be the same. vf = vo +a*t

 

[wizzed101]

vf^2 - vi^2 = 2 a d