Question

You lift a heavy book from the floor of the room and put it in the book shelf having a height $2m$. In this process you take $5s$.The work done by you will depend upon

• A. mass of the book and time taken
• B. weight of the book and the height of the book shelf
• C. height of the book shelf and the time taken
• D. mass of the book , height of the book shelf and time taken

Answer 1

Answer: (B)

weight of the book and the height of the book shelf

$Workdone=Force\times displacement$

$Force=weightofbook$

$Displacement=heightofshelf$