create a vector ff that stores the force from 0 to 3 seconds at fixed intervals of 0.05 seconds. in matlab

You can create a vector t for time starting from 0 to 3 seconds at a fixed interval of 0.05 seconds using the 0:0.05:3 syntax. Then you can calculate the corresponding force vector based on your equation of motion, let's say force = sin(t).

Here's the code:

main.m
t = 0:0.05:3; % time vector
force = sin(t); % force vector
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This will create a vector force that stores the force from 0 to 3 seconds at fixed intervals of 0.05 seconds, where the force values are calculated using the sin function.

You can replace the sin function with your own equation of motion to calculate the force.