Block-A weighing 1 kN rests on a rough inclined plane whose inclination to the horizontal is
45°. This block is connected to another block-B weighing 3 kN rests on a rough horizontal
plane by a weightless rigid bar inclined at an angle of 30° to the horizontal as shown in Fig-2.8.
Find horizontal force (P) required to be applied to the block (B) just to move the block (A) in
upward direction. Assume angle of limiting friction as 15° at all surface where there is sliding.
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Answer:A) weighing 1 KN rests on a rough inclined plane whose inclination to the
horizontal is 45°. This block is connected to another block
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