CH 11 angular kinematics
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| angular motion | All parts of a body move through the same angle, in the same direction in the same time
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| Joint or relative angles | Angle formed from he long axes of two adjacent body segments
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| Sentimental angles or absolute angles | orientation of a single body segment with a fixed line of reference
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| Measurement of angular velocity | ω = 0f - 0i / Δt = Δ0 / Δt
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| Radian | angle subtended by an Arc = in length to the radius
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| Arc length | r0
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| Circumference | 2 π r
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| Relationship between linear & angular velocity | V = r ω
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| How do you define angular velocity? | Rate of change in the joint velocity
ω = Δ ϴ / Δt
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| Angular acceleration | Rate of change in angular velocity
α = Δ ω / Δ t
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| Linear velocity units | m/s
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| Angular velocity units | rad/s
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| Linear acceleration units | m/s^2
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| Angular acceleration units | rad/s^2
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| If Omega is constant... | no rate of change (alpha - 0)
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| Force center of the circle that creates radial acceleration | constant velocity = increase acceleration
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| Centrifugal force | reaction from "center-fleeing" force
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| Centripetal force | Keeping rotation "center-seeking"
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Created by:
rmart11
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