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MediumPhysicsNewton's Laws of Motion
+4 / -1
Thin uniform rope of mass m is hanging from rough horizontal table as shown in figure. If its hanging length becomes 2/5th of its entire length then it is on the verge of slipping. Magnitude of friction force on the rope when it just about to slip is: (g is acceleration due to gravity)
A
2mg/3
B
2mg/5
C
3mg/5
D
mg/3

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