# Circular Motion & Rotational Dynamics

#### Formulae For The Moment of Inertia of Regular Bodies

 SPECIAL POINT (a) Moment of inertia of square plate I1 = I3 = I4 = , I5 = (b) Momentum of inertia of cube I1 = I2 = (c) In a triangle, M.I. will be maximum relative to smallest side If AC > BC > AB, IAC > IBC > IAB (d) In triangle , M.I. will be maximum relative to that perpendicular axis which passes through least angle. If θ1 < θ2 < θ3, I1 > I2 > I3 (e) Greater the mass away from axis of rotation, more will be MI

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#### IIT (Class X)

• Unit, Dimension & Error
• Vectors
• Motion in One Dimension
• PROJECTILE MOTION
• NEWTON'S LAWS OF MOTION & FRICTION
• WORK, POWER, ENERGY & CONSERVATION LAWS
• CIRCULAR MOTION & ROTATIONAL DYNAMICS
• GRAVITATION