Problem 561. Find the jerk

Created by Kye Taylor in Community

No, it's not the author of this problem...

Jerk is the rate of change in acceleration over time of an object. So, if given the position of an object over time in the form of a 1-by-N vector, return the indices i where there is nonzero jerk.

Super rad bonus hint: The signal you need to find the jerk of will be given by the variable sig, created with the commands

h = 0.065; % stepsize
t = -10:h:10;
sigCoefs = 2*rand(1,3)-1;
sig = polyval(sigCoefs,t);
breakPoint = randi(length(sig)-2)+1;
sig(breakPoint) = (1.01)*sig(breakPoint); % this creates a nonzero jerk

Check the signal visually with


Now, using just sig, determine breakPoint.

Solution Stats

52.17% Correct | 47.83% Incorrect
Last solution submitted on May 14, 2018

Problem Comments

Recent Solvers25

Suggested Problems

More from this Author1