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
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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