creating a function to find horizontal distance given initial velocity and initial angle.

Im trying to create a function that will allow for an input variable of the initial velocity, v and the initial angle, a; that comes up with the output of the horizontal distance once the object gets back to the starting y position.

so far I have

v = input('enter cannon ball exit velocity(m/s):'); %input of the exit velocity of the cannon in m/s a = input('enter cannon ball exit angle from horizon(degrees):'); %input of the exit angle from the horizon of the cannon ball in degrees

function [x]=cannon(v,a) g = -9.8; %gravitaitional constant in m/s^2 t = (2*(v*sin(a)))/g; %equation for the time until cannon hits the ground at the inpact location x = (v*cos(a))*t %equation for the horizontal distance where the cannon hits the ground at the impact location end

[Dimitris Kalogiros]

1) what is the quetion ?

2) use the button with {} Code on it , when you want to insert code into your question

[Adam Danz]

Is this a coding question or a conceptual question?

Answer 1

[Adam Danz]

It's not clear whether your question is related to code or concept. Concerning the code, you pretty much already have it written. I filled in some lines and reformatted it so that your function is called after the inputs are collected and it produces an output printed in the command window.

v = input('enter cannon ball exit velocity(m/s):'); %input of the exit velocity of the cannon in m/s
a = input('enter cannon ball exit angle from horizon(degrees):'); %input of the exit angle from the horizon of the cannon ball in degrees

x = cannon(v,a); 
fprintf('The horizontal displacement is %.2f.\n', x)

function x = cannon(v,a)
g = -9.8; %gravitaitional constant in m/s^2
t = (2*(v*sin(a)))/g; %equation for the time until cannon hits the ground at the inpact location
x = (v*cos(a))*t %equation for the horizontal distance where the cannon hits the ground at the impact location end
end

I haven't looked at the code conceptually.