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Author Question: Sebastian has drawn a free-body diagram for a ladder of mass m leaning against a frictionless wall. ... (Read 155 times)

jerry coleman

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on: Jul 28, 2018
Sebastian has drawn a free-body diagram for a ladder of mass m leaning against a frictionless wall. His diagram is shown below. What is his error?
 
 
 
   
  a.
  is in the wrong direction.
   
  b.
  should be directed upwards, not down.
   
  c.
  should be perpendicular to the wall, not parallel to it.
   
  d.
    should be down into the floor for to have the given direction.
   
  e.
  is correct, but there should also be a force perpendicular to the wall.

Question 2

An object of mass m is suspended by two coplanar wires, as shown below. The tension in each wire has a magnitude given by
 
   


   
  a.
  .
   
  b.
  .
   
  c.
  .
   
  d.
  mg.
   
  e.
  .


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nothere

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

c

Answer to Question 2

d


jerry coleman

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Reply 2 on: Jul 28, 2018
Wow, this really help

bitingbit

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Reply 3 on: Yesterday
Gracias!

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