Physics · Fluid Dynamics
Which of the following statements regarding air dynamics and water propulsion are correct? 1. Viscosity is completely irrelevant in atmospheric air flow. 2. Aerodynamic drag is directly proportional to the square of velocity (v2) under turbulent conditions. 3. Buoyant force significantly aids the height of jumps performed inside water. 4. Imparting spin on a ball can alter the boundary layer and reduce turbulence drag.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 11, 2, and 4
- 22, 3, and 4✓
- 31 and 3 only
- 41, 2, and 3
Correct answer
2, 3, and 4
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