One fourth length of a uniform rod is placed on a rough horizontal surface and rod starts rotating about the edge. At an angle $θ$ between the rod and the horizontal, rod begins to slide on the edge. If coefficient of friction between rod and surface is $μ$ , and $x tan θ = 4 μ$ . Find x. (Take g = 10 m/s²)

Question

TestHub · Accepted Answer

One fourth length mg ℓ 4 sin θ = 1 2 I ω 2 α = mg ℓ 4 cos θ I μ N - mg sin θ = m ω 2 ℓ 4 mg cos θ - N = m ℓ 4 α Solving , 1 3 tan θ = 4 μ

Physics - Rotation Question with Solution | TestHub

Options:

Doubts & Discussion