Question

What is the real life example of mechanics (the branch of physics)

Answer 1

Listed below are some of the interesting applications that mechanics finds. 

Swing a Ball in Air ( Why are Golf balls Dimpled? ) This example shows an application of Bernoulli's theorem to explain the swing of a ball in air. 

Lift a Car With Your Muscle Power This example describes a simple application of Pascal's law and how one can considerable reduce the force required to lift a car. 

Helium Balloon in a car - Strange Behavior This example shows the effect of pressure and bouyant force to describe why a helium ballon shows a strange behavior in a moving car.