1. E. A vibrating body goes through 5 complete yibrations in one second. Find the angular frequency and the period of motion. A body of unknown mass is attached to a spring of force constant IUD me. It is found to vibrate with a frequency of 3 hi. Find the period, the angular frequency and the mass. . A harmonic oscillator has a mass of 4 kg and a spring with a force constant we Him. Find the period, frequency and angular frequency