1 files changed, 21 insertions, 0 deletions
diff --git a/998/CH29/EX29.56/Ex56.sce b/998/CH29/EX29.56/Ex56.sce
new file mode 100755
index 000000000..da18ebc75
--- /dev/null
+++ b/998/CH29/EX29.56/Ex56.sce
@@ -0,0 +1,21 @@
+//Ex:56
+clc;
+clear;
+close;
+r_a=35000+6360;//apogee in km
+r_p=500+6360;//perigee in km
+A=(r_a+r_p)/2;//Semi_major axis in km
+a=A*1000;//Semi_major axis in m
+G=6.67*10^(-11);//Gravitation const in N-m^2/kg^2
+m=5.98*10^24;//mass of earth in kg
+u=G*m;
+t=2*(3.14)*sqrt((a^3)/u);
+printf("The orbital time period=%d s",t);
+printf("\n The orbital time period is 10 hours 20 minutes");
+x=2/(r_a*1000);
+y=1/a;
+v_a=sqrt(u*(x-y));// velocity at apogee in m/s
+c=2/(r_p*1000);
+v_p=sqrt(u*(c-y));// velocity at perigee in m/s
+printf("\n The velocity at apogee=%d m/s",v_a);
+printf("\n The velocity at perigee=%f km/s",v_p/1000);
+\ No newline at end of file