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starting from ground you climb a 20meters high building at a uniform speed of 1m/s and in doing so you spend a total of 6000 joules of energy. calculate your mass

starting from ground you climb a 20meters high building at a uniform speed of 1m/s and in doing so you spend a total of 6000 joules of energy. calculate your mass

Grade:10

2 Answers

iit jee
44 Points
13 years ago

hi,

6000 J of work which is done is converted into gravitational potential energy (neglecting friction) assume g=10m/s2

6000=m*10*20

m=30kg.

plzzzz approve!!!!!!!!!!!!!!!!!!!!!

vikas askiitian expert
509 Points
13 years ago

workdone against gravity  = mgH

 m=? , g = 10 , H =20 so

W(gravity) = 200m

W = 6000 is given so

200m = 6000

   m = 30kg

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