As the speed of falling drop increases, its dragging force
Correct answer: B. Increases
- A. Decreases
- B. Increases
- C. Remains constant
- D. Cannot predict
Explanation
As the speed of a falling drop increases, its dragging force increases as well. This is because at higher speeds, the drag force experienced by the drop due to the resistance from the surrounding fluid also increases.
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About Fluid Dynamics
Fluid flow is described through speed, pressure and density, including steady flow and the equation of continuity for conserving mass. Bernoulli's equation relates pressure, speed and height, while fluid drag and terminal velocity explain why a falling object eventually moves at constant speed when drag balances its weight.
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