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Diffstat (limited to '3886/CH13/EX13.8/13_8.sce')
| -rw-r--r-- | 3886/CH13/EX13.8/13_8.sce | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/3886/CH13/EX13.8/13_8.sce b/3886/CH13/EX13.8/13_8.sce new file mode 100644 index 000000000..5d900a1a7 --- /dev/null +++ b/3886/CH13/EX13.8/13_8.sce @@ -0,0 +1,15 @@ +//Find the least initial velocity
+//refer fig. 13.10
+//Let u the initial velocity required and alpha the angle of projection
+//here
+range=9 //m
+//at P x=5m and y=4m
+//u^2=(9*g)/(sind(2*alpha))
+//from the equation of trajectory
+alpha=atand(1.8) //degree
+//thus
+u=sqrt((9*9.81)/(sind(2*60.95))) //m/sec
+printf("u=%.2f m/sec",u)
+
+
+
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