Rotational Motion

Rotational Motion - Rotational Motion AP Physics C...

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Rotational Motion AP Physics C
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Introduction The motion of a rigid body (an object with a definite shape that does not change) can be analyzed as the translational motion of its center of mass AND the rotational motion about its center of mass. All points on a rotating rigid body move in circles and the center of these circles lie on a line called the axis of rotation
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Axis of Rotation Axis of Rotation
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Angular Displacement Angular Displacement Symbol: θ Unit: radian, rad 360° = 2π radians 1 rad = 57.3° r s = θ
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Angular Velocity Angular Velocity Symbol: ω Unit: rad/s Direction: use RHR Every point on a rotating rigid body has the same ω dt d z θ ϖ = =
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Angular Acceleration Angular Acceleration Symbol: α Unit: rad/s 2 Direction: See figure Every point on a rotating rigid body has the same α
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Angular Acceleration 2 2 dt d dt d dt d dt d z z θ ϖ α = = =
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Δθ ω α Δx v a In rotational motion if you know the analogous
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This note was uploaded on 04/12/2011 for the course PHYS 1320 taught by Professor Staff during the Spring '11 term at North Texas.

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Rotational Motion - Rotational Motion AP Physics C...

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