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+//Jet of water
+//refer fig. 14.18 and 14.19
+//time taken to move a horizontal distance of 5m
+t=5/20 //sec
+//During this period vertical downward velocity gained by water (Vw)
+Vw=0+(9.81/4)
+//Horizontal component of velocity of plate (HCp)
+HCp=0
+//Vertical component of velocity of plate (VCp)
+VCp=1 //m/sec
+//relative velocity of water w.r.t. plate
+vry=Vw-VCp //m/sec
+vrx=20 //m/sec
+vr=sqrt((20)^2+(1.453)^2) //m/sec
+alpha=atand(1.453/20) //degree
+printf("\nvr=%.2f m/sec\nalpha=%.2f degree",vr,alpha)
+
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