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UNIT 6 Rotational Motion & Angular Momentum Rotational Dynamics, Inertia and Newton’s 2 nd Law for Rotation.

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Presentation on theme: "UNIT 6 Rotational Motion & Angular Momentum Rotational Dynamics, Inertia and Newton’s 2 nd Law for Rotation."— Presentation transcript:

1 UNIT 6 Rotational Motion & Angular Momentum Rotational Dynamics, Inertia and Newton’s 2 nd Law for Rotation

2 TORQUE Torque is how we describe a force that causes an object to rotate. What does torque DO? The same things that force does, in a circle.

3 ROTATIONAL DYNAMICS CARD!

4 FOR A RIGID BODY: I

5 NEWTON’S 2 ND FOR ROTATION CARD! Force analog Mass analog Angular acceleration

6 Depends on the mass distribution of the object. MOMENT OF INERTIA

7 1.Determine axis of rotation 2.Identify forces and distances from the axis 3.Identify torques and their signs 4.Find I for the object 5.Apply rotational kinematics as needed USING NEWTON’S 2 ND FOR ROTATION

8 ROPES AND PULLEYS:

9 EXAMPLE:

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