Question
Question: You lift a heavy book from the floor of the room and keep it in the book-shelf having a height 2 m. ...
You lift a heavy book from the floor of the room and keep it in the book-shelf having a height 2 m. In this process you take 5 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 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
Weight of the book and height of the book-shelf
Explanation
Solution
Work done = Force × displacement
= Weight of the book × Height of the book shelf