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Author Question: An object is submerged in a swimming pool and of course the water exerts a buoyant force on the ... (Read 166 times)

fagboi

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on: Jul 27, 2018
An object is submerged in a swimming pool and of course the water exerts a buoyant force on the object. Suppose a thousand gallons of oil is spilled into the pool and now floats above the water.
 
  How is the buoyant force on the object changed by the overlying oil?

Question 2

You fall, while skiing, and one ski (of weight W) loosens and slides down an icy slope (assume no friction), which makes an angle  with the horizontal. The force that pushes it down along the hill is
 
  A) W.
  B) W cos .
  C) zero; it moves with constant velocity.
  D) W sin .
  E) W tan .


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mathjasmine

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Reply #1 on: Jul 27, 2018
Answer to Question 1

No change at all as long as the density of the water remains unchanged. After all, the buoyant force depends upon the volume displaced and the DENSITY of the water.

Answer to Question 2

D


fagboi

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Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

tranoy

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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