The soft landing of a lunar module descending on the moon can be modeled as shown in
Chapter 0, Problem P3.8(choose chapter or problem)
The soft landing of a lunar module descending on the moon can be modeled as shown in Figure P3.8. Define the state variables as Xi = y, JC2 = dyldt, x3 = m and the control as u = dmldt. Assume that g is the gravity constant on the moon. Find a state variable model for this system. Is this a linear model?
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