Question

youre standing on the ground your friend is standing on a balcony of an apartment building 12m above you. you throw a ball straight upward to your friend, it takes 0.536 s to get to her and she catches it when its right in front of her how fast is the ball moving when she catches it

Answer 1

h = Vo*t + 0.5g*t^2 = 12 m.
Vo*0.536 - 4.9*0.536^2 = 12,
Vo = 25.0 m/s.

V = Vo + g*t = 25 - 9.8*0.536 = 19.8 m/s When caught.