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Sunday, January 27, 2013


Physics:
Formula and Example of Force


The Formula Of Counting Work Is:

Work= force  x displacement 

               W= F s
Where:

 F = Force, unit of measurement is N (Newtons)

S = Displacement, unit of measurement is M (Meters)

W = Work, unit of measurement is J (Joules)


Examples:


Mother pushing baby stroller
1. What is the work needed to push a 50 N load, if the load moves 20 meters in the same direction of force?

Answer:  F = 50m      F x D=
               D = 20m      50 x 20 = 1000J


2. What is the work needed if a person shoots the ball and flew over 4 meters high, if your body has a 60 kg mass?
A girl shooting a basketball



Answer:   F = M x G
                F = 60 x 10
                F = 600
                F = 600 x 4 = 2400J

 *It is times 10 because their is gravity acting upon it 

-------------------------------------------------------




 Work = Force x Distance 
           = ( 70 + 20 - 20) x 2
           = 80 x 2 = 160 
                           


                               





Work = Force x Distance 
          = 70 x 2
          =  140 

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