Imagine, you are sitting with a laptop and working pressing different keys is that a work it may not be called work according to physicist. According to physics what is said to be done when a force acts on an object and object is displaced from its position if the object does not move there is no work done.
For example:- when we try to push a table and it moves work is done but if we try to push a wall and the world doesn't move work is not done.
The Standard unit of work is Joule (J)
Pressure:-
Pressure is the force per unit area acting in a direction perpendicular to the surface of contact.
The standard unit of pressure is Newton per square metre.
Answers & Comments
(1)J is the unit of work
(2)Pascal's is the unit of pressure
(3)Newton is the unit of buoyant force
other need of your answer in photo check it and otther people don't do silly answer for points only .. such this saying good evening...
Work:-
Imagine, you are sitting with a laptop and working pressing different keys is that a work it may not be called work according to physicist. According to physics what is said to be done when a force acts on an object and object is displaced from its position if the object does not move there is no work done.
For example:- when we try to push a table and it moves work is done but if we try to push a wall and the world doesn't move work is not done.
The Standard unit of work is Joule (J)
Pressure:-
Pressure is the force per unit area acting in a direction perpendicular to the surface of contact.
The standard unit of pressure is Newton per square metre.
Buoyant force:-
An upward force exerted by a fluid.
The standard unit of buoyant force is Newton (N)
Hope it's help you dear.
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