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[" The work done in pulling up a block o...

[" The work done in pulling up a block of wood "],[" weighing "2" kN for a length of "10m" on a smooth "],[" plane inclined at an angle of "15^(*)" with the horizonfal "],[" is "],[[" (a) "436k," (d) "5.17k" ."],[" (c) "891K," (d) "9.82times f]]

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