Question

Which of the following statements is correct regarding drag acting on a ball thrown vertically downwards from a building before it touches the ground?

• A.
  The ball will experience no drag.
• B.
  The direction of the drag will always be upward.
• C.
  The direction of the drag will always be downward.
• D. Initially, the direction of drag will be upward and after some time the direction will be downwards.
  

Answer 1

The correct option is B

The direction of the drag will always be upward.
The drag acting on a moving body always opposes the relative motion. Hence, when the body is falling vertically downward from a building, it will experience an upward drag.