1 files changed, 30 insertions, 0 deletions
diff --git a/1205/CH11/EX11.2/S_11_2.sce b/1205/CH11/EX11.2/S_11_2.sce
new file mode 100644
index 000000000..69255df33
--- /dev/null
+++ b/1205/CH11/EX11.2/S_11_2.sce
@@ -0,0 +1,30 @@
+clc;
+a=-9.81;//m/s^2, Acceleration
+// By theoritical work we get following functions
+function y=displ(t)
+    y=20+10*t-4.905*t^2;//m
+    funcprot(0);
+endfunction
+
+function v=vel(t)
+    v=10-9.81*t;//m/s
+    funcprot(0);
+endfunction
+
+//At highest elevation v=0,
+
+t=10/9.81;//s, 
+// Putting it in displacement function
+
+printf("When V=0 time should be %.3f s \n",t);
+printf("Highest elevation %.1f m\n",displ(t));
+
+//Ball hits the ground,then y=0
+
+
+Y=poly([20,10,-4.905],'x','coeff');// Velocity polynomial
+[t]=roots(Y);// Solution for polynomial
+//Here only positive value is valid
+t=t(1);
+printf("Time to reach ground is %.2f s\n",t);
+printf("Hitting velocity is %.1f m/s\n",vel(t));