# Particle oscillation in a potensial field

Problem by zainul abidin
30 Nov 1999 00:00 WIB
A particle of mass m is located in a unidimensional potential field where the potential energy of the particle depends on the coordinate x as $U(x)=(1-a\cos bx)$, where a and b are constants. Find the period of small oscillations that the particle performs about the equilibrium position.