1.

A block of mass 5 kg slides down on a rough inclined plane of coefficient of friction 0.75 having angle of inclination 37∘ as shown in the figure. Initially if the block is at rest on the top of inclined plane of length 2 m, then the work done against the friction in moving the block to the bottom of inclined plane is (Take g=10 m/s2).

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A block of mass 5 kg slides down on a rough inclined plane of coefficient of friction 0.75 having angle of inclination 37 as shown in the figure. Initially if the block is at rest on the top of inclined plane of length 2 m, then the work done against the friction in moving the block to the bottom of inclined plane is (Take g=10 m/s2).




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