When the drag force on the object becomes equal to its real weight then the:
Correct answer: C. Object will fall with terminal velocity
- A. Object will become stationary
- B. Object will fall freely
- C. Object will fall with terminal velocity
- D. Object will fall with critical velocity
Explanation
When drag force equals weight, net force is zero so acceleration ceases and the object falls at constant terminal velocity.
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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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