+1 vote
in Machine Dynamics by (34.3k points)
The axis of precession is ____________ to the plane in which the axis of spin is going to rotate.

(a) parallel

(b) perpendicular

(c) spiral

(d) none of the mentioned

This question was addressed to me by my college professor while I was bunking the class.

This intriguing question comes from Gyroscopic Couple in chapter Gyroscopic Couple and Precessional Motion of Machine Dynamics

1 Answer

0 votes
by (38.6k points)
The correct option is (b) perpendicular

Easiest explanation: The axis of precession is perpendicular to the plane in which the axis of spin is going to rotate. The gyroscopic principle is used in an instrument or toy known as gyroscope.

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