Question

You lift a heavy book from the floor of the room and keep it in the bookshelf having a height $2m$. In this process you take $5\text{seconds}$. The work done by you will depend upon

• A. Mass of the book and time taken
• B. Weight of the book and height of the bookshelf
• C. Mass of the book, height of the bookshelf and time taken
• D. Height of the bookshelf and time taken

Answer 1

The correct option is B Weight of the book and height of the bookshelf

$\text{Work done}=\text{Force}\times \text{displacement}=\text{Weight of the book}\times \text{Height of the bookshelf}$