For a particle settling in water at its terminal settling velocity, which of the following is true ?
Correct answer: B. Weight = buoyancy + drag
- A. Buoyancy = weight + drag
- B. Weight = buoyancy + drag
- C. Drag = buoyancy + weight
- D. Drag = weight
Explanation
At terminal settling velocity, acceleration is zero and the downward weight is balanced by the upward buoyancy and drag forces. Hence, weight = buoyancy + drag.
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