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A motor car moves with a velocity of \(20 \mathrm{~ms}^{-1}\) on a rough horizontal ...

A motor car moves with a velocity of \(20 \mathrm{~ms}^{-1}\) on a rough horizontal road and covers a displacement of \(50 \mathrm{~m}\). Find the coefficient of dynamic friction between the type and the ground \(\left(g=10 \mathrm{~ms}^{-2})\)

A. \(0.3\)
B. \(0.4\)
C. \(0.6\)
D. \(0.5\)





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