Question

The direction of Corioli’s component of acceleration is the direction

(a) of relative velocity vector for the two coincident points rotated by 90^0 in the direction of the angular velocity of the rotation of the link

(b) along the centripetal acceleration

(c) along tangential acceleration

(d) along perpendicular to angular velocity

The question was asked at a job interview.

My doubt is from Method of Locating Instantaneous Centres in a Mechanism topic in section Velocity in Mechanisms of Machine Kinematics

Answer 1

The correct answer is (a) of relative velocity vector for the two coincident points rotated by 90^0 in the direction of the angular velocity of the rotation of the link

For explanation: The direction of coriolis component of acceleration will not be changed in sign if both ω and v are reversed in direction. It is concluded that the direction of coriolis component of acceleration is obtained by rotating v, at 90°, about its origin in the same direction as that of ω.