you lift a heavy book from the floor of the room and keep it in the book - shelf having a height `2m` in this process you take `5seconds` The work done you will depend upon

Options

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

Answer

B

Explanation

Work done = Force `xx` displacement
= Weight of the book `xx` Height of the book shelf