A 4 .0 kg block initially at rest is pulled to the right along a horizontal surface by a constant horizontal force of 12N. Find the speed of the block after it has moved 3.0 m if the surfaces in contact have a coefficient of kinetic friction of 0.15 (g= 9.80 m/ ss)
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Explanation:
. इनमें प्रथम प्रेरणात्मक क्रिया रूप है-
बी) चडाई
ए) लिखावट
सी) सुनाना
डी) बचना
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