MATLAB: How to solve ode functions

ode functionsode45

Hi there,
Please see my code which is attached here. I have tried to run it, but it says not enough inputs.
Can anyone help me with this?
Thank you very much for your help.

Best Answer

  • From question, I guess the inputs should be velocity and depth of the container. The outputs should be time taken to reach the required velocity (t1) and time taken to reach the bottom of the container (time). I have created the function Velo_ball(velocity,depth) which inputs the velocity and depth as input and gives the output t1=time at which given velocity is acheived and time= time to hit the bottom of container. Hope this helps. If not please rectify.
    function [t1, time]= Velo_ball(velocity,depth)
    syms y(t)
    ode = diff(y)+0.025*y^2==1.6;
    cond=y(0)==0;
    v=dsolve(ode,cond,t);
    S= v==velocity;
    t1=double(solve(S,t))
    time=depth/velocity
    end