The acceleration of a falling body in a fluid depends upon:
Correct answer: D. All of the above
- A. Velocity
- B. Viscosity of fluid
- C. Density of the body
- D. All of the above
Explanation
The statement "All of the above" means that the acceleration of a falling body in a fluid is influenced by all these factors together, and no single factor alone can fully explain the complex dynamics of a body falling through a fluid.Acceleration depends on velocity, density, radius, and viscosity.
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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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