Engineering Mechanics - Force Vectors - Discussion
Discussion Forum : Force Vectors - General Questions (Q.No. 17)
17.
The gusset plate G of a bridge joint is subjected to the two member forces at A and B. If the force at B is horizontal and the force at A is directed at 
= 30°, determine the magnitude and direction of the resultant force.
R = 458 N, 
= 97.5° CCW
= 97.5° CCWR = 252 N, = 82.5° CCW
= 82.5° CCWR = 252 N, = 97.5° CCW
= 97.5° CCWR = 458 N, = 82.5° CCW
= 82.5° CCWDiscussion:
11 comments Page 1 of 2.
Elji said:
1 year ago
tan^-1(250/-33.0127).
= -82.4776 or -82.5 (since it is negative you have to subtract it from 180) 180-82.5.
= 97.5° CCW.
= -82.4776 or -82.5 (since it is negative you have to subtract it from 180) 180-82.5.
= 97.5° CCW.
Padmanathan said:
1 decade ago
R = 252.17N.
Fx = 33.01N So,
X = 1/cos(Fx/R).
= 82.5 degree. This is the correct answers. so answer is B.
Fx = 33.01N So,
X = 1/cos(Fx/R).
= 82.5 degree. This is the correct answers. so answer is B.
Nidhi said:
1 decade ago
The angle should be 82.5 as angle of resultant is given by tanA=Rx/Ry. Where A is angle of resultant.
Preeti2009_delhi@yahoo.com said:
1 decade ago
The ange is not correct in the C. The angle should be 82.5. Hence its B option is correct.
Ashish said:
1 decade ago
Angle take always from positive x-direction So C is right. 180 - 82.5.
Deepak kumar said:
1 decade ago
Angle are same. Hence its c option is correct.
Sarvjeet singh said:
9 years ago
The correct answer is B by resolve forces.
Anjaneyulu said:
1 decade ago
The direction angle is not correct.
Rey said:
8 years ago
82.5 is the correct answer.
Ilham said:
9 years ago
The correct answer is B.
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