The period of a simple pendulum on Earth is 2 seconds where acceleration due to gravity g = 9.8 m/s2. What will be its time period on the Moon where gravitational acceleration is approximately 1.6 m/s2?

An object oscillates 20 times in two minutes. What is its frequency?

Two bodies of masses 1 kg and 4 kg are connected by a spring of spring constant K = 5 N/m on a smooth horizontal surface. Find the time period of oscillation of the system.