A pendulum clock is set to give correct time at the sea level. This clock is moved to a hill station at an altitude of 2500 m above the sea level. In order to keep correct time on the hill station, the length of the pendulum

Mechanics is the area of mathematics and physics concerned with the relationships between force, matter, and motion among physical objects. Forces applied to objects result in displacements or changes of an object's position relative to its environment.