Projectile motion of a cannonball(without drag) - calculating the route, range, height and time it will spend in the air of a cannonball fired with a certain force

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TOLGAHAN VARISLI 2021-5-8

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/825050-projectile-motion-of-a-cannonball-without-drag-calculating-the-route-range-height-and-time-it-w

评论： TOLGAHAN VARISLI 2021-5-9

A force of 1000 newtons is applied to the cannonball. But the code does not simulate correctly. I could not find my fault. I would be very grateful if you could help. Thanks.

clear;
clc;
g=9.81;
m=1; 
F=1000;
dt=0.1;
t=0;
angle=45;
Fx=cosd(angle)*F;
Fy=sind(angle)*F;
axold=Fx/m;
ayold=Fy/m;
vx=0;
vy=0;
x=0;
y=0;
while min(y)>-0.001
    t=t+dt;
    ax=0;
    ay=-g;
    if (t==0.1)
        vx=vx+dt*(axold)/2;
    else
        vx=vx+dt*(ax)/2;
    end
    
    if (t==0.1)
        vy=vy+dt*(ayold)/2;
    else
        vy=vy+dt*(ay+ayold)/2;
    end
          
    if (t==0.1)
        x=x+vx*dt+dt*dt*(axold)/2;
    else
        x=x+vx*dt+dt*dt*(ax+axold)/2;
    end
    
    if (t==0.1)
        y=y+vy*dt+dt*dt*(ayold)/2;
    else
        y=y+vy*dt+dt*dt*(ay+ayold)/2;
    end
    Height=max(y);
end
plot(x,y)
xlabel('x distance (m)')
ylabel('y distance (m)')
title('Cannonball Path')

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Image Analyst 2021-5-9

@TOLGAHAN VARISLI, deleting questions after they've been answered is very much frowned upon and may limit the number of answers you get in future questions.

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Answer 1

Image Analyst 2021-5-8

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/825050-projectile-motion-of-a-cannonball-without-drag-calculating-the-route-range-height-and-time-it-w#answer_695120

projectile.m

See my attached projectile demo. It has variables for just about everything you could want to specify and computes just about everything you can possibly think of.