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Author Question: A 2.0-kg block slides on a rough horizontal surface. A force (P = 6.0 N) is applied to the block as ... (Read 265 times)

yoroshambo

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on: Jul 28, 2018

A 2.0-kg block slides on a rough horizontal surface. A force (P = 6.0 N) is applied to the block as shown. The magnitude of the block's acceleration is 1.2 m/s2. What is the magnitude of the force of friction acting on the block?
 
   


   
  a.
  2.0 N
   
  b.
  1.4 N
   
  c.
  1.6 N
   
  d.
  2.8 N
   
  e.
  3.4 N

Question 2

A rock attached to a string swings in a vertical circle. Which free-body diagram could correctly describe the force(s) on the rock when it is at the lowest point, where is the normal force, is weight, and is tension?
   
  a.
 
  b.
 
  c.
 
  d.
 
   
  e.
 


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cici

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

d

Answer to Question 2

b


yoroshambo

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  • Posts: 566
Reply 2 on: Jul 28, 2018
:D TYSM

zacnyjessica

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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