- Rotational Motion
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- Angular velocity
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- Angular acceleration
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- Rotation with constant angular acceleration
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- Kinetic energy of Rotation
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- Calculation of moment of inertia
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- Parallel Axis Theorem|Theorems of Moment of Inertia
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- Perpendicular Axis Theorem
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- Torque
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- work and power in rotational motion
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- Angular acceleration
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- Relationship between Angular momentum and torque
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- Conservation of Angular momentum
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- Radius of gyration
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- Rolling Motion|Kinetic Energy of rolling bodies
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- Rotational Motion problems with solutions

- Torque acting on any particle is given by

If external torque acting on any particle is zero then,

- Hence in absence of external torque the angular momentum of the particle remains constant or conserved.

- Total torque acting on any system is given by

- If total external force acting on any particle system is zero or,

- If total external torque acting on any body is zero , then total angular momentum of the body remains constant or conserved.

a. 5.26 rev/s

b. 5.2 rev/s

c 4.7 rev/s

d. none of these

Law of conservation of angular momentum

I

or

1.33(1.9)=.48ω

or

ω

Class 11 Maths Class 11 Physics Class 11 Chemistry