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A block of mass 5 kg is held against a wall with a force of 100 N. as shown in figure. It is moved horizontally slowly by applying a force parallel to the wall. Thent he frictional force on the block due to wall is `25x` newton find x. (given `mu=0.5` and `g=10(m)/(sec^(2))`

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A block of mass 5 kg is held against a wall with a force of 100 N . as shown om figure. It is moved horizontally slowly by applying a force parallel to the wall. Then the fricational force on the block due to wall is 25x newton. Find x . (Given mu = 0.5 and g = 10 m//sec^(2) )

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