Answers

  • Brainly User
2016-03-03T17:44:11+05:30
Ek= Ep
FxS=mgh
m= mass of the man+mass of the object
m=70+10=1010 
=80x10x10
=8000J


                   
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sorry dear this explanation is wrong....we also have to add the mass of man also...
k i'll edit it
plz mark it as brainliest
how....
u cannot do it only the person who had asked the question can do it
2016-03-03T18:06:31+05:30
total mass = mass of man + the mass of object = 70 +10 = 80 kg
distance = 100 m
therefore work done ,
= force * displacement
= m*g*h
= 80*10*100
= 80000 J

i hope it helps.............. :)
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