WORK

WORK

The word - the word often used in the business of everyday life, but understanding the business of everyday life are not exactly the same with the business sense in physics. But if we use the science of understanding the meaning of it will be the same.
 Enterprises in everyday life - the day is an activity carried out by someone to make ends meet. If we look carefully then when people search for money he also issued a force / energy and to obtain money she had to transfer / move, from here the sense of effort in life is almost the same as in physics.
                Look at pictures of people who are interesting sejaruh d meter beam! People are said to have done the work or effort. But note also the person who pushed the walls with a vengeance. The man who pushed the walls saying do not do business or work. Although the person is issued a very large compressive force, but because there is no displacement of the wall position, then that person is said to be doing the work.

Effort is the amount of force acting on an object so that the object is experiencing displacement. If the force is denoted by F and displacement with s then mathematically Enterprises can be written:

W = F.s

where:
W = Work (Joules)
F = Force (N)
s = displacement (m)

example:
1.Sebuah wooden box located on the flat floor is driven by the force 20 N so that the box slides a distance of 5 m.
What is the work done by the force?

completion:
Given:
F = 20 N
s = 5 m
asked:
W =?
Answer:
W = F s
W = 20. 5 = 100 J

2. Andi and Budi pushed a table. Andi mendororong to the right with a force 400 N and Budi pushed to the left by
300 N force that the table shifted to the right as far as 2 m. How much work is done?

completion:
Given:
FA = 400 N to the right
FB = 300 N to the left
s = 2 m
Asked: W =?
Answer:
W = (FA - FB). s
   = (400 - 300). 2
   = 100. 2 = 200 J