A block of mass 20 kg lying on a rough horizontal plane is connected – McqOptions

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1.	A block of mass 20 kg lying on a rough horizontal plane is connected by a light string passing over a smooth pulley to another mass 5 kg, which can move freely in the Vertical direction, as shown in the below figure. The tension in the string will ___________ with the increase in coefficient of friction.
A.	Increase
B.	Decrease
C.	Not be effected
D.	None of these
Answer» B. Decrease

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