2 files changed, 24 insertions, 0 deletions
diff --git a/3886/CH18/EX18.11/18_11.sce b/3886/CH18/EX18.11/18_11.sce
new file mode 100644
index 000000000..8304cbd87
--- /dev/null
+++ b/3886/CH18/EX18.11/18_11.sce
@@ -0,0 +1,18 @@
+//Ball dropped from height
+//refer fig. 18.11
+g=9.81  //m/sec^2
+h0=1.2  //m
+uy=sqrt(2*g*h0)  //downward
+h1=1  //m
+v1y=sqrt(2*9.81*h1)  //upwards
+e=sqrt(1/1.2)  
+//Time of flight
+t1=(2*sqrt(2*9.81*1))/(9.81)  //sec
+ux=0.4/0.903  //m/sec
+//Vertical component of velocity after second bounce
+v2y=0.903*sqrt(2*9.81*1)  //m/sec
+h2=((v2y)^2)/(2*9.81)  //m
+t2=(2*4)/(9.81)  //sec
+//Horizontal range
+D2=0.443*0.815  //m
+printf("\ne=%.3f \nh2=%.3f m \nD2=%.3f m ",e,h2,D2)
diff --git a/3886/CH18/EX18.11/18_11.txt b/3886/CH18/EX18.11/18_11.txt
new file mode 100644
index 000000000..529e046b6
--- /dev/null
+++ b/3886/CH18/EX18.11/18_11.txt
@@ -0,0 +1,6 @@
+ 
+--> exec('E:\My program EM\18. Impact of elastic bodies\18.11.sce', -1)
+
+e=0.913 
+h2=0.815 m 
+D2=0.361 m 
+\ No newline at end of file