View Single Post
  #6  
Old Tuesday, August 28, 2012
waseemh40's Avatar
waseemh40 waseemh40 is offline
Junior Member
 
Join Date: Mar 2012
Location: Karachi
Posts: 8
Thanks: 0
Thanked 0 Times in 0 Posts
waseemh40 is on a distinguished road
Default

Quote:
Originally Posted by very special 1 View Post
i dont know my method was right or wrong but i solved it in following way
As displacement is in cordinates and force also in x and y cordinates..........
as on path OBC two paths are ob and bc
we know work formula is W=f.d
f=given
d = x and y = 5 m
first along OB and than along bc and then add these both works and u will find total work along OBC

similarly for other path find work

for the middle path find the displacement of middle path by pythagorus theorm and than find work for it.

if the sum of total work is zero it is conservative other wise non conservative.

note
when u multiply force with displacement, as it is in coordinates and work is dot product so just x multiply with x or y multiply with y. and other coordinate will be zero.

i hope u understand how i attempted this question

regards
Thanks sister. I will further see it in an authentic book. Well can you kindly tell me your method of preparing Physics like books studied, how to use past papers, material research, number of times you revised syllabus etc. I am an engineering student and unluckily have no person to guide me:-(
Even at this forum no one is available for guidance regarding science subjects.....
Thanks again
Reply With Quote