Theory of Machine
A point B on a rigid link AB moves with respect to A with angular velocity ω rad/s. The total acceleration of B with respect to A will be equal to

Vector sum of radial component and tangential component
Vector sum of tangential component and Coriolis component
Vector difference of radial component and tangential component
Vector sum of radial component and Coriolis component

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Theory of Machine
Sensitiveness of the governor is defined as the ratio of the

Difference of the maximum and minimum equilibrium speeds to the mean speed
Sum of the maximum and minimum equilibrium speeds to the mean speed
Mean speed to the maximum equilibrium speed
Mean speed to the minimum equilibrium speed

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