Hi Peter Carchia,
To create multiple graphs for the trajectories of projectile motions at different velocities while keeping the angle of incidence the same, please calculate the coordinates of the paths at the different velocities and the given angle, and then iterate over the velocity instead to plot all the trajectories. Please refer to the below code snippet to modify your code.
%Projectile motion of a golf ball (no air resistance)
t = 0:.5:7.8; %time vector
u = [20 40 60]; % initial velocities (change this vector as per the need)
angle = 45; % constant angle of incidence;
theta = unitsratio ('rad','deg')*angle;
g = 9.8;
ux =u.*cos(theta); %initial velocities x direction
uy = u.*sin(theta); %initial velocities y direction
x = ux.'*t; % x coordinates of trajectory at different initial velocity
y= uy.'*t -0.5*g*t.^2; % y coordinates of trajectory at different initial velocity
for j = 1:size(u,2) % iterating over the velocity vector.
for i = 1:size(x,2)
% if(i>1) && (y1(i)<0) %stop plotting when ball hits the ground
% break;
% end
plot (x(j,i),y(j,i),('*'));
hold on;
pause(0.01);
end
end
title 'flight of golf ball'
xlabel 'meters'
ylabel 'meters'
Hope this helps!
