Please help!! projectile motion problem.. 1. The problem statement, all variables and given/known data a student throws a water balloon vertically downward fromt he top of a building; the balloon leaves the thrower's hand with a velocity of 10 m/s. 1.what will be its velocity after falling for 2 seconds? 2.what will be its velocity after falling 10 meters? 3.If it moved a distance of 1 meter while int he throwers' hand, find it's accelereation while in his hand. 2. Relevant equations d=(vi+vf)t 2 a= (vf-vi)/t 3. The attempt at a solution I think i can get the answers to 1 and 2. I'm clueless on #3. thank you for all help!!! greatly appreciated.