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The work done in sliding a block of weight of 50 kg up a plane inclined at an angle of 30? to the horizontal so that the block is lifted through 1 m (

[A].	More than 50 kgm	[B].	50 kgm
[C].	Less than 5 kgm	[D].	15 kgm only
[E].	None of the above

Answer: Option A

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