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Author Question: Two blocks connected by a string are pulled across a horizontal surface by a force applied to one of ... (Read 110 times)

james0929

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on: Jul 28, 2018
Two blocks connected by a string are pulled across a horizontal surface by a force applied to one of the blocks, as shown. The coefficient of kinetic friction between the blocks and the surface is 0.25. If each block has an acceleration of 2.0 m/s2 to the right, what is the magnitude F of the applied force?
 
 
 
   
  a.
  25 N
   
  b.
  18 N
   
  c.
  11 N
   
  d.
  14 N
   
  e.
  7.0 N

Question 2

Two blocks are accelerated across a horizontal frictionless surface as shown. Frictional forces keep the two blocks from sliding relative to each other, and the two move with the same acceleration. If F = 1.2 N and M = 1.0 kg, what is the horizontal component (frictional force) of the force of the small block on the large block?
 
   


   
  a.
  0.48 N to the right
   
  b.
  0.72 N to the right
   
  c.
  0.72 N to the left
   
  d.
  0.48 N to the left
   
  e.
  0.65 N to the left


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Kingjoffery

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Reply #1 on: Jul 28, 2018
Answer to Question 1

a

Answer to Question 2

b


james0929

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Reply #2 on: Jul 28, 2018
Thanks


Kingjoffery

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Reply #3 on: Jul 28, 2018
Welcome :)


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