Question

sarita lives on 3rd floor of building at the height of 15m carries her school bag weighting 5.2 kg from the ground floor to her house find the amoint of work done by her and identify the force against whi h she was done work g=10ms-2

Answer 1

work done = m×g×h= 15×5.2×10=480J
the force against which work aws done was gravitational force.

Answer 2

work done=mgh
=5.2*10*15
680