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CHAPTER 8 =ROTATIONAL MOTION - Coggle Diagram
CHAPTER 8 =ROTATIONAL MOTION
Angular Quantities
θ=l/R
Instantaneous angular velocity, ω=dθ/dt
angular velocity , ω=∆θ/∆t
linear velocity , v=Rω
Angular Displacement , ∆θ=θ2-θ1
frequency (Hz) =ω/2π
T=1/f
Constant Angular Acceleration
Vector Nature of Angular Quantities
The angular velocity vector points along the axis of rotation, with the direction given by the righthand rule. If the direction of the rotation axis does not change, the angular acceleration vector points along it as well.
Determining moment of Inertia
The perpendicular axis theorem is valid only for flat object
Torque and Rotational Inertia
The perpendicular distance from the axis of rotation to the line along which the force acts is called lever arm
A long lever arm is helpful in rotating objects
The Rotational Inertia is depends on its mass distribution and location of the axis of rotation
Rotational Kinetic Energy
The kinetic energy of rotating object
Translational and Rotaional Kinetic Energy
