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QUESTION 4 Use the Matlab command lsim to solve the differential equation shown below. \(3 \frac{d^2x(t)}{dt^2} + 2x(t) = t + \sin(3t)\) \(x(0) = 0\) and \(\dot{x}(0) = 0\). Using the time step of 0.01 seconds, what is \(x(t=0.87)\)? Keep 4 digits after the decimal point (e.g. 0.1234). Do not use scientific notation. NOTE: The system can be defined using either tf or zpk. If tf or zpk is used, the initial conditions must be zeros. If the initial conditions are not zeros, and you still want to use lsim, then the system must be defined using state-space model (ss.m).

          QUESTION 4
Use the Matlab command lsim to solve the differential equation shown below.
\(3 \frac{d^2x(t)}{dt^2} + 2x(t) = t + \sin(3t)\)
\(x(0) = 0\) and \(\dot{x}(0) = 0\).
Using the time step of 0.01 seconds, what is \(x(t=0.87)\)? Keep 4 digits after the decimal point (e.g. 0.1234). Do not use scientific notation.
NOTE: The system can be defined using either tf or zpk. If tf or zpk is used, the initial conditions must be zeros. If the initial conditions are not zeros, and you still want to use lsim, then the system
must be defined using state-space model (ss.m).

QUESTION 4
Use the Matlab command lsim to solve the differential equation shown below.
3 (d^2x(t))/(dt^2) + 2x(t) = t + sin(3t)
x(0) = 0 and ẋ(0) = 0.
Using the time step of 0.01 seconds, what is x(t=0.87)? Keep 4 digits after the decimal point (e.g. 0.1234). Do not use scientific notation.
NOTE: The system can be defined using either tf or zpk. If tf or zpk is used, the initial conditions must be zeros. If the initial conditions are not zeros, and you still want to use lsim, then the system
must be defined using state-space model (ss.m).

Added by Blanca C.

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