Non-Free-Fall Motion and Newton's Second Law of Motion
In the image below, we are still looking at the man when he has been falling for less than a second. Because he is now moving downward, he does have wind resistance acting on him, and because he is moving slowly, the wind resistance acting on him is relatively small.
As long as the man is at or near the surface of the earth, we know gravity must act on him, and we know that gravity pulls downward on him. But, now that the man is moving, he also has wind resistance acting on him, and we know that the wind resistance acts in the direction opposite of his motion. So, he now has two forces acting on him: gravity is pulling down on him, and wind resistance is pushing up on him.
At this point, because the man has been moving for less than one second, we know that he is moving slowly. Imagine sticking your hand out of a car window while the car is driving slowly. Think about the wind resistance you feel on your hand while the car is moving slowly.
What Kind of Wind Resistance Does the Man Encounter Now?
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