Homework #6

# Homework #6 - plot(x1,y1,x1,y2), grid on ; A plot a large...

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13.85 A projectile is launched at 100 ft/s at 60° above the horizontal. The surface on which it lands is described by the equation shown. Determine the x coordinate of the point of impact. Use Matlab plotting. Matlab file: x1=linspace(0,400,401); % This will calculate the value every foot. v0=100; % This is the initial speed. theta=60*pi/180; % The initial angle in radians. y1=projectile1(32.2,0,0,v0*cos(theta),v0*sin(theta),x1); y2=-0.001*x1.^2; % The is the shape of the curved ground surface.

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Unformatted text preview: plot(x1,y1,x1,y2), grid on ; A plot a large scale, followed by a plot zoomed in at the intersection point. From the first plot, we see the projectile intersects with the ground around x = 320 ft and y = -100 ft. Zooming in around this point, we can read the intersection to 4 digits as x = 318.4 ft and y = -101.4 ft. Of course we could also solve this problem easily just using the equations for projectile motion and our calculator....
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## This homework help was uploaded on 04/07/2008 for the course ME 201 taught by Professor Biggers during the Spring '08 term at Clemson.

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Homework #6 - plot(x1,y1,x1,y2), grid on ; A plot a large...

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