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Physics · L4 · Solving a Rotational Dynamics Problem

A general strategy for applying τ = Iα: identify all torques about the axis, sum them, then solve for angular acceleration.

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🌀 Choose the rotation axisIdentify every force acting on the bodyFind the torque of each force: τ = rF sinθSum torques with sign convention to get τ_netFind the moment of inertia I about the chosen axisApply τ_net = Iα✅ Solve for α, then integrate for ω and θ if needed

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