please answer the questions from a to c An 80 kg jogger starts from rest and run

Question

please answer the questions from a to c

An 80 kg jogger starts from rest and runs up the hill into a stiff breeze. At the top of the hill the jogger's body has done a work of 1.8 times 104 J, air resistance has done work of 4420J, and the jogger's speed is 3.5 m/s. Is the work done by joggers body positive or negative ? Is this work done by a conservative or non-conservative force ? Is the work done by the 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.

Explanation / Answer

a)positive and conservative force

b) negative and conservative force........

C) 18000-4420=0.5*m*V^2+m*g*h.........

h=16.69m

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