Q1. When a force of 19.0 N is applied to a spring, it elongates 0.0858 m. find out the period of oscillation of a 4.0 kg object suspended from this spring.
Q2. A 5.00 kg mass on a 1 m long string swings in a circle on the horizontal, frictionless tables at a steady speed of 2 m/s. how much work does the tension in the string do on the mass during one revolution.