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QAIPM-2014-Ph-1428: NEET 2014 Physics - Class 11 AIPM-2014-Ph-1428 Solution: A system consists of three masses \(m_1 m_2\) and \(m_3\)…

A system consists of three masses m1m2m_1 m_2 and m3m_3 connected by a string passing over a pulley P. The mass m1m_1 hangs freely and m2m_2 and m3m_3 are on a rough horizontal table (the coefficient of friction = μ\mu). The pulley is frictionless and of negligible mass. The downward acceleration of mass m1m_1 is (Assume m1=m2=m3=mm_1 = m_2 = m_3 = m) g(1−gμ)9\frac{g(1-g\mu)}{9} 2gμ3\frac{2g\mu}{3} g(1−2μ)2\frac{g(1-2\mu)}{2} g(1−2μ)3\frac{g(1-2\mu)}{3}

Multiple Choice Options

  • A g(1−gμ)9{{g\left( {1 - g\mu } \right)} \over 9} 9 g ( 1 _ g_ ) _
  • B 2gμ3{{2g\mu } \over 3} 3 2 g_ _
  • C g(1−2μ)3{{g\left( {1 - 2\mu } \right)} \over 3} 3 g ( 1 _ 2 _ ) _
  • D g(1−2μ)2{{g\left( {1 - 2\mu } \right)} \over 2} 2 g ( 1 _ 2 _ ) _

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