Direction: Answer the following problem. Use GFSA rules. Indicate the positive answer. Formula: dy = Vit + 1 2 gt2 t = 2 Vf2 = Vi2 + 2gdy = 2 Vf = Vi + gt t = Vf g Vi 1. A construction worker accidentally drops a brick from a high scaffold. a) What is the velocity of the brick after 4.0 s? b) How far does the brick fall during this time? 2. Suppose a free-fall ride at an amusement park starts at rest and is in free fall. a) What is the velocity of the ride after 2.3 s? b) How far do people on the ride fall during the 2.3-s time period? 3. You dropped a ball downward from a window. How fast will it be moving when it hits the sidewalk 2.5 m below? 4. Eunice and her friends were snapping selfies on the cliff when their phone dropped and hit the ground at 43 m/s. How long did it take the phone to travel from the top of the cliff to the ground? 5. You drop a rock from the rest off of a cliff, and it hits the ground 10 seconds later. How tall is the cliff? 6. An object falls from a high building, what will its velocity be after 6 seconds of falling