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Textbook Expert
Textbook ExpertVerified Tutor
27 Nov 2021

Given information

We are given that:-

Mass of box , .

The coefficient of static friction,

The coefficient of kinetic friction, .

Step-by-step explanation

Step 1.

Boxes and  are connected by a rope passing over a pulley. Box  is lying on a table and box  is hanging freely. According to Newton's third law of motion, the mass   of box  acts vertically down and the normal force acts vertically upwards. Since box  is connected to box  , it experiences a tension force   along the length of the rope.

Box  is hanging freely. Its weight acts vertically downwards and since the same rope passes over the pulley that connects boxes  and , the same tension force   acts on box B along the length of the rope. The forces acting are shown in the figure below:

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