I have Questions

  • Thread starter hpla
  • Start date
  • #1
11
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hey . this is a simple Questions , look at pic this is a statics


[PLAIN]http://hh7.net/Sep/hh7.net_13195790041.png [Broken]


my Question . how he calculate 120 , 290 for Angles ??
 
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Answers and Replies

  • #2
SteamKing
Staff Emeritus
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Your diagram doesn't match the table.
 
  • #3
1,065
54
I don't quite understand what's being asked.
 
  • #4
26
0
The angles show the direction each force is acting,ANTICLOCKWISE relative to the positive x-axis ---->
150 N acts at 120 degrees, starting from ---> go anticlockwise 90 degrees,then add 30 degrees = 120 degrees
50 N acts at 250 degrees,not 290 go 180 degrees anticlockwise then add 70 degrees.

P.S THE UNITS ARE ALL WRONG, they should be N not Nm
 

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