Theory of Machine
Angle of descent of cam is defined as the angle

Through which the cam rotates during the period in which the follower remains in the highest position
Of rotation of the cam for a definite displacement of the follower
During which the follower returns to its initial position
Moved by the cam from the instant the follower begins to rise, till it reaches its highest position

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Theory of Machine
The direction of Coriolis component of acceleration is the direction

Along the centripetal acceleration
Along perpendicular to angular velocity
Along tangential acceleration
Of relative velocity vector for the two coincident points rotated by 90° in the direction of the angular velocity of the rotation of the link

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