A uniform wooden stick of mass 1.6 kg and length ℓ rests inclined against a smooth vertical wall of height h (< ℓ), with a small portion extending beyond the wall. The wall reaction is perpendicular to the stick. The stick makes 30° with the wall, and its lower end is on a rough floor. The wall reaction equals the floor reaction in magnitude. Find h/ℓ and the frictional force f at the bottom. Take g = 10 m·s⁻².
Physics · Rotational Motion · torque and rotational equilibrium
A uniform wooden stick of mass 1.6 kg and length ℓ rests inclined against a smooth vertical wall of height h (< ℓ), with a small portion extending beyond the wall. The wall reaction is perpendicular to the stick. The stick makes 30° with the wall, and its lower end is on a rough floor. The wall reaction equals the floor reaction in magnitude. Find h/ℓ and the frictional force f at the bottom. Take g = 10 m·s⁻².
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