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+// Example 2_5
+clc;funcprot(0);
+// Given data
+// v_x=50-60t;
+// y=100-4t^2;
+// where v_x is in meters per second, y is in meters, and t is in seconds.
+
+// Calculation
+// x=50t-8t^2;
+a_x=-16;// The x-component of the acceleration in m/s^2
+// v_y=-8t; The y-component of the velocity in m/s
+a_y=-8;// The y-component of the acceleration in m/s^2
+// When y=0,
+t=sqrt(100/4);
+v_x=50-(16*t);
+v_y=-8*(t);
+v=sqrt((v_x.^2)+(v_y.^2));// m/s
+a=sqrt(a_x.^2+a_y.^2);// m/s^2
+printf("\nThe velocity,v=%2.0fi+(%2.0fj) m/s \nThe acceleration,a=%2.0fi+(%1.0fj) m/s^2",v_x,v_y,a_x,a_y);
+y=[0,20,40,60,80,100];// m
+for(i=1:6)
+    t(i)=sqrt((100-y(i))/4);// s
+    x(i)=((50*t(i))-(8*t(i).^2));// m
+    v_x(i)=((50*t(i)-(8*t(i).^2)));// m/s
+    v_y(i)=(-8*t(i));// m/s
+    v=sqrt((v_x.^2)+(v_y.^2));// m/s
+    a=sqrt(a_x.^2+a_y.^2);// m/s^2
+end
+plot(x',y,'-.*');
+xlabel('x,m');
+ylabel('y,m');