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diff --git a/896/CH4/EX4.3/3.sce b/896/CH4/EX4.3/3.sce
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+clc
+//Example 4.3
+//Calculate the kinetic energy of bullet fired from a airplane
+v_bp=2000;//ft/s vel of bullet wrt plane
+v_p=-1990;//ft/s
+v_b=v_bp+v_p//ft/s vel of bullet wrt ground
+m=0.01;//lbm
+KE=(m*v_b^2/2)*(1.356/32.2)//J
+printf("the kinetic energy of bullet fired from a airplane is %f J",KE);
+\ No newline at end of file