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Grade: 11
        
You lift heavy book from the floor of the room and keep it in the book - shelf having height 2m. In this process you take 5 seconds. The work done by you will depend upon
 
one year ago

Answers : (1)

Khimraj
3008 Points
							
work done = energy*t = mgh*t = m*10*2*5 = 100m
where m is mass of book.
one year ago
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