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+//railway carriage
+//refer fig. 14.20
+//Velocity of components of train are
+v1x=96  //kmph
+v1y=0
+//Velocity components of bullet are
+//v2x=0.9848*v
+//v2y=0.1736*v
+//Component of relative velocity of B w.r.t. A are
+//vrx=0.9848*v-96
+//vry=0.1736*v
+//Direction of relative velocity alpha with x-axis
+//tand(alpha)=((vry)/(vrx))
+//thus
+v=183.96  //kmph  
+//consider motion in y direction
+vry=0.1736*51.1  //m/sec
+//Time period (t)
+t=(1.8)/(0.1736*51.1)  //sec
+printf("\nv=%.2f kmph\nt=%.3f sec",v,t)
+
+
+