According to the Cornwall Alliance, Earth is which of the following? The fragile outcome of physical necessity
The resilient creation of God’s wise design
The self-regulating product of Mother Nature
The unstable result of chance

It depends on the surface of the levels. the rougher the surface, the greater is the frictional force. for rougher surfaces, you would need to exert greater force to move the object. the concept is that, you must overcome the frictional force in order to bring the object into motion. this is the reason why we add lubricants to the joints so they could easily move. this answer was on