Plotting time series of Velocity over 48 hours

I am trying to plot Velocity over a time frame of 48 hours. I have calculated Vm = 5.07. The given Velocity equation is: V(t) = Vm*sin((2*pi*t)/(Ttide));

My code is:

figure(1);

Vm=5.07; % Calculated on Paper

t=[1:1:48]; % Time over 48 hours

V(t) = Vm*sin((2*pi*t)/(Ttide)); % Velocity Equation

plot(t,V(t))

This is outputing a postivie sloping straight line, while I know the line should be sinusoidal.

Answer 1

[Scott MacKenzie]

% test value for Ttide (not given in question)
Ttide = 1; 

figure(1);
Vm=5.07; % Calculated on Paper 
%t=[1:1:48]; % Time over 48 hours 
t = linspace(1,48); % use 100 sample points (or more)
V = Vm*sin((2*pi*t)/(Ttide)); % Velocity Equation (NOTE: change V(t) to just V)
plot(t,V)

[John Carroll]

Thank You!

Is it posible to have this be one line?

Ttide is give as Ttise=12.42 hours the converted to seconds as Ttide=12.42*60*60 (Forgot to mention)

[John Carroll]

Ive relized this is where my mistake was made!