Question
Precession, nutation, and intrinsic rotation occur when changing one of the three angles named after this man. For 10 points each:
[10e] Name this scientist whose namesake “angles” are often used to describe the orientation of a rigid body. This man’s namesake number is approximately 2.718.
ANSWER: Leonhard Euler [accept Euler’s number; accept Euler angles]
[10h] This doubly eponymous set of angles differs from the Euler angles, because each angle represents a rotation in different axes. Also known as the Cardan angles, these angles are heavily used in aerodynamics.
ANSWER: Tait-Bryan angles
[10m] When calculating the third Euler angle, the argument of this function is negated, unlike other angles. In classical mechanics, this function of the coefficient of friction gives the angle of the inclined plane.
ANSWER: arctangent [accept inverse tangent]
<Ezra Santos, Physics>
Summary
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