MATLAB Answers

How can I calculate the acceleration if I know the time and the displacement ?

276 views (last 30 days)
I have a column with the exact time of each measurement, and a column with a distance between a sensor and a reflective surface. By taking the difference between two consecutive measurements I can have the time between the two and the displacement (negative or positive). How can I calculate the displacement using the derivative function ?
t1=0.2; t2=0.4;
t=t2-t1; %%%%time period
h1=150; h2=160;
d=h2-h1; %%%%%displacement v=... ? a= ... ?


Sign in to comment.

Accepted Answer

Pawel Jastrzebski
Pawel Jastrzebski on 5 Apr 2018
Edited: Pawel Jastrzebski on 5 Apr 2018
Consider the following example:
t = 1:10;
h = t.^2;
dt = diff(t)
dh = diff(h)
% v - velocity
v = dh./dt
dv = diff(v)
% a - acceleration
a = dv./dt(2:end)
hold on;
legend({'h', 'v','a'})


Dragos Dascalu
Dragos Dascalu on 5 Apr 2018
why is the height dependent on time here ? I have both time and height saved in separate vectors.
Pawel Jastrzebski
Pawel Jastrzebski on 5 Apr 2018
It's just an example. I use t as the time vector and also because it's simply a vector of numbers so I used it to create the h vector of the displacement values growing exponentially. But long story short, h can be anything. In your case, use the vectors you were given.

Sign in to comment.

More Answers (0)

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by