Second Law of Rotation Newton’s First Law of Rotation Newton’s Second Law of Rotation Rotational Inertia / Moment of Inertia Rotational Inertia of extended.

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Presentation transcript:

Second Law of Rotation Newton’s First Law of Rotation Newton’s Second Law of Rotation Rotational Inertia / Moment of Inertia Rotational Inertia of extended objects Examples –Potter’s wheel –Pulley and rope –Pulley and bucket –Atwood’s machine

Newton’s First Law of Rotation

Newton’s Second Law of Rotation r F

Rotational 2 nd Law for many points r1r1 m1m1 m2m2 r2r2

Rotational Inertia

Rotational Inertia for Disk

Rotational Inertia for various objects Don’t memorize – If you need these we’ll provide them

Summary - Rotational Inertia for objects

Example – Potter’s wheel

Example – pulley and rope

Example – pulley and bucket

pulley and bucket (cont)

Review - Atwood’s Machine

Atwood’s Machine with Pulley

Atwood’s Machine with Pulley (2)

Atwood’s Machine with Pulley (3)

Atwood’s Machine with Pulley (4)