The L-bar consisting of two uniform bars each of length L is released from rest when θ = 9...

The L-bar consisting of two uniform bars each of length L is released from rest when θ = 90°. Neglecting friction, determine the smallest value achieved by θ. Hint: The equation sin θ + A cos θ = B admits the solution θ = sin-1 (B cos ϕ) − ϕ, with ϕ = tan−1 A, if |B cos ϕ| ≤ 1.

Figure P8.12