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+//Gravel is thrown in bin
+//refer fig. 13.16 and 13.17
+//taking O as origin
+u=5  //m/sec
+alpha=50  //degree
+//for point B
+y=-10  //m
+t=1.871  //sec
+//Horizontal distance travelled in this time=6.012 m
+//Vertical component of velocity of gravel at the time of striking the bin is=14.524 m/sec (downwards) 
+//Horizontal component of velocity=5*cosd(50)  m/sec
+//Velocity of strike
+v=sqrt((14.524^2)+(3.214^2))  //m/sec
+theta=atand(14.524/3.214)  //degree to the horizontal
+printf("\nt=%.2f sec\nHorizontal distance travelled=6.012 m\nv=%.2f m/sec\ntheta=%.2f degree to horizontal",t,v,theta)
+
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+