1. The problem statement, all variables and given/known data A physical pendulum oscillates through small angles about the vertical with the angle, measured in radians, obeying the differential equation d2θ/dt2 = -4πθ. What is the period of the oscillation? 2. Relevant equations T = 2π √(L/g) 3. The attempt at a solution I attempted to integrate twice which should give me θ. This did not work, though, because the acceleration is defined by θ. Thanks!