A rock is shot vertically up froma building and starts falling back to Earth after 1.60 seconds. After 6.00 seconds, it hits the ground. Constant acelleration of 9.81 m / s^2. a. What is initial velocity? b. What is max height above building? c. How tall is the building? I got the following answer, I am unsure of them though: a => 15.7 m / s b => 12.6 m c => 164 m Could anyone tell me if my figures are correct? Thank you.