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[6" A lawn roller is displaced through "...

[6" A lawn roller is displaced through "1" km using a force "],[" of "200N" in a direction making an angle of "60^(@)" with the "],[" lawn.The work done is: "],[[" (a) "10^(5)J," (b) "10^(4)J],[" (c) "10^(6)J," (d) "10^(3)J]]

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