elevator motor modelling code

Hello Everyone, i was trying to plot the transient time system of an elevator using these equations

T = mg – ma= m(g-a)

N = mg if the elevator is at rest or moving at constant velocity

N = mg + ma if the elevator has an upward acceleration

N = mg - ma if the elevator has a downward acceleration

Answer 1

[J Chen]

You need to model the system with a differential equation: . Solve the equation with MATLAB or Simulink for given N(t).