Q.

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» A. More than 50 kgm
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