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Author Question: An object of mass m with a certain initial speed on a horizontal surface comes to rest after ... (Read 117 times)

jenna1

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on: Jul 29, 2018
An object of mass m with a certain initial speed on a horizontal surface comes to rest after traveling a distance of 9.0 m.
 
  If the coefficient of kinetic friction between the object and the horizontal surface is 0.20, what is the initial speed of the object? Use g = 10 m/s2.
  A)
 
  9.8 m/s
 
  B)
 
  6.0 m/s
 
  C)
 
  3.6 m/s
 
  D)
 
  7.2 m/s
 
  E)
 
  8.9 m/s

Question 2

How a ship floats is described in terms of
 
  A)
 
  Bernoulli's principle.
  B)
 
  Pascal's principle.
  C)
 
  Archimedes' principle.
  D)
 
  Poiseuille's equation.
  E)
 
  Torricelli's equation.


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Beatricemm

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Reply #1 on: Jul 29, 2018
Answer to Question 1

B

Answer to Question 2

C


jenna1

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Reply #2 on: Jul 29, 2018
Thanks


Beatricemm

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Reply #3 on: Jul 29, 2018
Welcome :)


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