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

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1.	A block ot 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
Answer» B. decrease

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