Luz, who is skydiving, is traveling at terminal velocity with her body parallel to the ground. She then changes her body position to feet first toward the ground. What happens to her motion?

At terminal velocity, air resistance balances gravity, so Luz’s speed is steady. Turning feet first reduces the area of her body facing the air, which decreases air resistance; gravity then pulls downward more strongly than the air pushes upward. She speeds up until air resistance grows enough to balance gravity again at a new terminal velocity. The correct choice is C, “She will speed up because air resistance will decrease and be less than gravity.”

AI-written and checked against the verified answer.