A body moving on a fluid will experience:
Correct answer: A. Drag force
- A. Drag force
- B. Centripetal force
- C. Centrifugal force
- D. Tabular force
Explanation
In fluid dynamics, drag (sometimes called air resistance, a type of friction, or fluid resistance, another type of friction or fluid friction) is a force acting opposite to the relative motion of any object moving concerning a surrounding fluid.
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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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