弹丸运动[关闭]

Question

我应该编写一个提供多行抛射运动的脚本，但我的代码似乎无法满足我的需求。

disp('This program will calculate the trajectory of a ball thrown at an initial speed vo \n')
v0 = input('Please enter the initial speed');
x0 = 0;
y0 = 0;
g = 9.81;%m/s^2
T = 5 : 5 : 85;
vx = v0*cosd(T);
vy = v0*sind(T);
t = (2*v0.*sind(T))/g;
y = y0 + (vy.*t) - ((g.*(t.^2))/2);
x = x0 + vx.*t;
plot(x,y)

图表应该是这样的：

Answer 1

在您的代码中，T 表示初始度数。您想计算不同初始度数的x 和y (5:5:85)。对T 使用for 循环，并为不同的t 绘制x 和y。

disp('This program will calculate the trajectory of a ball thrown at an initial speed vo \n')
v0 = input('Please enter the initial speed');
x0 = 0;
y0 = 0;
g = 9.81;%m/s^2
for T = 5 : 5 : 85
    vx = v0*cosd(T);
    vy = v0*sind(T);
    t = linspace(0,(2*v0.*sind(T))/g,100);
    y = y0 + (vy.*t) - ((g.*(t.^2))/2);
    x = x0 + vx.*t;
    plot(x,y)
    hold on
    xlim([-inf inf])
    ylim([-inf inf])
end

输出：

This program will calculate the trajectory of a ball thrown at an initial speed vo \n
Please enter the initial speed10