4. PROBLEM: A ball is dropped from 100m. Ignoring air resistance and using g=9.8 m/'s 2, calculate the velocity it hits the groundwith andthe time it takesto fall. (ANS: 44.3 m/'s 4.5s) NOTE: "YES" I know I've given you the answers to some of these problems so you can self-correct, but you MUST still show your work - the equation(s) used, and the solution - forfull credit velocity = time =