IB Physics HL A 4 2 Hl Rotational Equilibrium Questions

Apply clockwise and anticlockwise moments to rotational equilibrium, selecting a pivot and distinguishing zero resultant torque from zero resultant force.

Exam points

Apply the principle of rotational equilibrium: the sum of clockwise torques equals the sum of anticlockwise torques.
Calculate unknown forces, distances or torques in balanced rotational systems using complete diagrams and mark schemes.

[Maximum number: 1]

A uniform cylinder, of mass M and length L, has a moment of inertia of $\frac{1}{12} M L^{2}$ when rotated about an axis through its centre.

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State the condition for rotational equilibrium.

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IB Physics HL A 4 2 Hl Rotational Equilibrium Questions question 1