1.

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 \[15{}^\circ \] with the horizontal is [AFMC 1999; Pb PMT 2003]

A. 4.36 kJ
B. 5.17 Kj
C. 8.91 kJ
D. 9.82 kJ
Answer» C. 8.91 kJ


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