Asked by Tim
If both the projection Pa and component Fb of the force F are 305 N, determine the magnitude F and the orientation è of the b-axis.
There is a 70 degree angle from the negative y-axis to the a-axis.
There is a 108 degree angle from the negative y-axis to the force.
There is a 70 degree angle from the negative y-axis to the a-axis.
There is a 108 degree angle from the negative y-axis to the force.
Answers
Answered by
MathMate
If Pa and Fb are both 305N, then angles aOF and FOb are equal to 38 °
See
http://www.twiddla.com/1746657
Since F*cos(38)=305N,
F=305N/cos(38).
You can work out the orientation of b from the figure.
See
http://www.twiddla.com/1746657
Since F*cos(38)=305N,
F=305N/cos(38).
You can work out the orientation of b from the figure.
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