Think of any large ancient building in India: a church, a mosque, a temple, etc. These are huge structures, with very large pieces of stone. Yet, their shape has remained more-or-less the same over hundreds of years.
In the past hundreds of years, lots of disturbances must have occured: an earthquake, cyclones, and so on. Still, most stones have remained where they are. We are so used to this that we don't question what keeps things static when forces act on them. Let's explore this phenomenon now.
Pre-requisites: Newton's Laws Of Motion 1