Awatermelon is dropped from the top of a 80m tall building. we want to find the velocity of the watermelon after it falls for 1.35s. we can ignore air resistance. kinematics formula would be most to solve for the target unknown? answer choices in picture.

Which of the following situations is impossible? a) an object has velocity directed east and acceleration directed east. b) an object has zero velocity but non-zero acceleration. c) an object has constant non-zero velocity and changing acceleration. d) an object has velocity directed east and acceleration directed west. e) an object has constant non-zero acceleration and changing velocity.