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Write a program to calculate the position of a projectile at a given time t. For an initial velocity v0 and angle of departure θ0, the position is given by x and y coordinates as follows (note: the gravity constant g is 9.81m/s2 ):
The program should initialize the variables for the initial velocity, time, and angle of departure. It should then call a function to find the x and y coordinates, and then another function to print the results. If you have version R2016a or later, make the script into a live script.
Matlab
Ch6Ex29.m
% Projectile motion
v0 = 33;
theta0 = pi/4;
[x, y] = findcoords(v0, theta0, t);
printcoords(x,y)
findcoords.m
function [x, y] = findcoords(v0, theta0, t)
g = 9.81;
x = v0 * cos(theta0) * t;
y = v0 * sin(theta0) * t - 0.5 * g * t * t;
end
printcoords.m
function printcoords(x,y)
fprintf('x is %f and y is %f\n', x, y)
end
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