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A book of mass 1 kg is on the floor. If the book is lifted from the floor to the top shelf which is 2 meters from the floor, how much work is done on the book?

Sagot :

IssaYaluviz
To calculate for the work done the formula is
                     
                      [tex] W = F x d[/tex]

Note that Force here is equal to the weight of the object which is:      
       
            Fg = mass x acceleration due to gravity 
            Fg = 1 kg * 9.8 [tex] m/s^{2} [/tex]
            Fg = 9.8 Newtons

Thus, work equals
            W = 9.8 Newtons x 2 meters
            W = 19.6 Joules