Rotation

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8 Terms

1
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only a force ____ of a system can change its motion (speed, momentum, accel)

outside

2
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angular velocity

omega, radians

3
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angular displacement

radians, positive CCW, negative CW

4
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v = ωr

linear velocity = angular velocity times radius

5
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angular velocity is

the same everywhere in the circle

6
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linear velocity

is greater on the outside of the circle

7
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torque

Nm, radius perpendicular to force OR radius times force sin theta. inertia times angular acceleration.

8
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Δθ = ½ αt2 + ωit

big equation for angular motion