Newton's 2nd law--force and acceleartion part 2?

Question

6. An aircraft gains speed during takeoff due to the constant thrust of its engines. WHen is the acceleration during takeoff greatest --at the begining of the run along the runway, or just before the aircraft lifts into the air? (fill in the blank in the answer sentence) Acceleration would be the greatest ________________ takeoff when air drag is ________.

7. As a sky diver falls faster and faster throught the air (before reaching terminal speed), does the net force on her increase, decrease, or remain unchanged Does her acceleration increase, decrease, or remain unchanged? What affects both factor? (fill in the blank) The net force on the sky diver will __________ and her acceleration will ________. Both factors are affected by ___________.

Answer 1

7. The net force on the sky diver will INCREASE and her acceleration will DECREASE. Both factors are affected by AIR RESISTANCE