Theory of Machine
The unbalanced force due to reciprocating masses

Constant in magnitude and direction both
Varies in magnitude but constant in direction
Varies in magnitude and direction both
Varies in direction but constant in magnitude

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

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