# Answer to Question #52284 in MatLAB | Mathematica | MathCAD | Maple for Stephen

Question #52284

In this part, you are going to create a MATLAB Graphical User Interface (GUI) using GUIDE.

The GUI you need to create uses the function written in 'Part 3 - Plotting Projectile Motion' (see below). It allows a user to input various values for inputs x0, y0, V0x and V0y, and then the user can press a 'redraw plot' button to update the figure of projectile motion on the GUI. Your GUI should use the following UI components:

- Edit Text

- Static Text

- Axes

- Push Button

Some components may be used several times.

'Part 3':

function projectile(x0,y0,V0x,V0y)

g = -9.8;

b = V0y;

a = g/2

c = y0;

t_flight = (-b-sqrt(b^2-4*a*c))/(2*a);

t = linspace(0,t_flight,100);

x = x0 + V0x.* t;

y = y0 + V0y.* t + (1/2) * g.* t.^2;

plot(x, y, 'b-', 'Linewidth', 3);

axis equal;

xlabel('Distance (m)');

ylabel('Height (m)');

title('Projectile Motion');

The GUI you need to create uses the function written in 'Part 3 - Plotting Projectile Motion' (see below). It allows a user to input various values for inputs x0, y0, V0x and V0y, and then the user can press a 'redraw plot' button to update the figure of projectile motion on the GUI. Your GUI should use the following UI components:

- Edit Text

- Static Text

- Axes

- Push Button

Some components may be used several times.

'Part 3':

function projectile(x0,y0,V0x,V0y)

g = -9.8;

b = V0y;

a = g/2

c = y0;

t_flight = (-b-sqrt(b^2-4*a*c))/(2*a);

t = linspace(0,t_flight,100);

x = x0 + V0x.* t;

y = y0 + V0y.* t + (1/2) * g.* t.^2;

plot(x, y, 'b-', 'Linewidth', 3);

axis equal;

xlabel('Distance (m)');

ylabel('Height (m)');

title('Projectile Motion');

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