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You lift some library books from lower to a higher shelf in time Δt.Does the work that you do depend on (a)the mass of the books , (b)the weight of the book , (c)the height of the upper shelf above the floor, (d)the time Δt, and (e)whether you lift the books sideways or directly upward?

Iqra , 8 Years ago
Grade 12th pass
anser 1 Answers
Vikas TU

Last Activity: 8 Years ago

 work that you do depend on (a)the mass of the books , (b)the weight of the book , (c)the height of the upper shelf above the floor.
 
As work = Force x displacement
             
= (Force is mg inn -j direction) x (displacement from lower to upper shelve in j direction)
that hasboth mass term, weifght and disaplacment but inde;endent of time.

 

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