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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /3482/CH4/EX4.6/Ex4_6.sce | |
| download | Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.gz Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.bz2 Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.zip | |
initial commit / add all books
Diffstat (limited to '3482/CH4/EX4.6/Ex4_6.sce')
| -rw-r--r-- | 3482/CH4/EX4.6/Ex4_6.sce | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/3482/CH4/EX4.6/Ex4_6.sce b/3482/CH4/EX4.6/Ex4_6.sce new file mode 100644 index 000000000..113c314d6 --- /dev/null +++ b/3482/CH4/EX4.6/Ex4_6.sce @@ -0,0 +1,33 @@ +clc;
+//page 185
+
+m=10;//kg mass of joist
+g=9.81;//m/s^2 gravitational acceleration
+W=m*g;//N
+AB=4;//m
+// Three force body
+BF=AB*cos(45*%pi/180);//m
+AF=BF;//m
+
+AE=1/2*AF;//m
+EF=AE;//m
+CD=AE;//m
+BD=CD/tan((45+25)*%pi/180);//m
+DF=BF-BD;//m
+CE=DF;//m
+alpha=atan(CE/AE);//radians
+alpha=alpha*180/%pi;//degrees
+
+//From geometry
+
+G=90-alpha;//degrees
+B=alpha-(90-(45+25));//degrees
+C=180-(G+B);//Degrees
+
+//Force triangle
+//T/sin(G)=R/sin(C)=W/sin(B)..... sine law
+
+T=W/sin(B*%pi/180)*sin(G*%pi/180);//N
+R=W/sin(B*%pi/180)*sin(C*%pi/180);//N
+printf("Tension in cable T= %.1f N\n Reaction At A is \n R= %.1f N with angle alpha= %.1f degrees with +ve X axis",T,R,alpha);
+
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