Thrust and Pressure in daily life

What is Pressure?
                         - It is the force acting perpendicularly on a unit area of the object.
   
       Pressure = Force/Area= Thrust/Area
Note- We know that the same force can produce different pressures depending on the area over which it acts. 
- The same force acting on a smaller area exerts a large pressure while a force on a large area exerts small pressure.

Applications in Daily life-
  1. Handles of bags are made broad                          - The handles of bags, suitcase, etc are made broad having more area so that small pressure is exerted on the hand. If we use thin handles, it may hurt our hand as pressure increase with less area.

2. The Tractors have broad tyres
     - So that there is less pressure on the ground and the tyres do not sink into comparatively soft ground in the field.

3. Pressure on Ground - is more when a man is walking than when he is standing because, in case of walking, the effective area is less. 

4. On the Frozen lake - when we are on the frozen lake we slide on it instead of walking, because sliding on the body provide more area and less pressure which will help to cross the bridge with less pressure on the frozen ice.
  
5. In laying on the railway track- 
                                                     Railway tracks are laid on the cement or iron sleepers so that pressure exerted by the train is spread over the large area and thus become less.