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physics Advanced Subsidiary (AS) Level Physics. Viscous and Air Resistance Forces
 
Viscous and Air Resistance Forces
 

Viscous and Air Resistance Forces problem 13

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An air bubble in a tank of water is rising with terminal (constant) velocity. The forces acting on the bubble are , and , as shown.




The upthrust on the bubble is . Which statement about the forces is correct?


  • is the viscous force on the bubble, is the weight of the bubble and .


  • is the viscous force on the bubble, is the weight of the bubble and .


  • is the weight of the bubble, is the viscous force on the bubble and .


  • is the weight of the bubble, is the viscous force on the bubble and .


 

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