An 80 kg jogger starts from rest and runs up the hill into a stiff breeze. At the top of the hill the joggers body has done a work of 1.8 X 10^4 J, air resistance has done work of 4420J, and the joggers speed is 3.5 m/s.
(1) Is the work done by the joggers body positive or negative? I this work done by a conservative or non-conservative force?
(2) Is the work done by air resistance positive or negative? Is this work done by a conservative or non-conservative force?
Using conservation of energy, determine the height of the hill.© BrainMass Inc. brainmass.com October 15, 2018, 11:11 am ad1c9bdddf - https://brainmass.com/physics/conservation-of-energy/word-done-by-the-jogger-and-by-air-resistance-138929
It explains the works done by the jogger and by air resistance, respectively.