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According to Kennedy’s theorem, if three bodies have plane motions, their instantaneous centres lie on

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in Machine Kinematics by (38.0k points)
According to Kennedy’s theorem, if three bodies have plane motions, their instantaneous centres lie on

(a) a triangle

(b) a point

(c) two lines

(d) a straight line

I had been asked this question in my homework.

My enquiry is from Properties of Instantaneous Centre topic in portion Velocity in Mechanisms of Machine Kinematics

1 Answer

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by (106k points)
Right answer is (d) a straight line

Explanation: The Aronhold Kennedy’s theorem states that if three bodies move relatively to each other, they have three instantaneous centres and lie on a straight line.

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