This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Sebastian has drawn a free-body diagram for a ladder of mass m leaning against a frictionless wall. ... (Read 153 times)

jerry coleman

  • Hero Member
  • *****
  • Posts: 570
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.
  .


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

nothere

  • Sr. Member
  • ****
  • Posts: 324
Reply #1 on: Jul 28, 2018
Answer to Question 1

c

Answer to Question 2

d


jerry coleman

  • Member
  • Posts: 570
Reply 2 on: Jul 28, 2018
Excellent

bassamabas

  • Member
  • Posts: 294
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

Did you know?

Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

Did you know?

Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

Block Diagram of Single-stage Pressure System for Dual-Stage Pressure Production of Nitric Acid Block Diagram of Single-stage Pressure System for Dual-Stage Pressure Production of Nitric Acid
Integumentary regulation of body temperature. Integumentary regulation of body temperature.
Schematic diagram showing polyclonal response by B cells against linear epitopes. Schematic diagram showing polyclonal response by B cells against linear epitopes.
A very thin uniform rod, 2.40 m long and of weight 135 N, has a frictionless hinge at its lower ... A very thin uniform rod, 2.40 m long and of weight 135 N, has a frictionless hinge at its lower ...
Video: Cataract

For a complete list of videos, visit our video library