A motor with polar moment of inertia Jdevelops torque according to the relationshipT = aω + b. The motor drives a load defined by thetorque–speed relationship TL = cω2 + d. If the fourcoefficients are all positive constants, determine theequilibrium speeds of the motor-load pair, andwhether these speeds are stable.

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A motor with polar moment of inertia J
develops torque according to the relationship
T = aω + b. The motor drives a load defined by the
torque–speed relationship TL = cω2 + d. If the four
coefficients are all positive constants, determine the
equilibrium speeds of the motor-load pair, and
whether these speeds are stable.

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