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Question

Physics Question on laws of motion

A trolley of mass 20kg20\, kg is attached to a block of mass 4kg4\, kg by a massless string passing over a frictionless pulley as shown in the figure. If the coefficient of kinetic friction between trolley and the surface is 0.020.02, then the acceleration of the trolley and block system is (Takeg=10ms2\,g=10\,m \,s^{-2})

A

1m1\, m s2s^{-2}

B

2m2\, m s2s^{-2}

C

1.5m1.5\, m s2s^{-2}

D

2.5m2.5\, m s2s^{-2}

Answer

1.5m1.5\, m s2s^{-2}

Explanation

Solution