Two blocks are attached to a light string. Block A (mA=14.6kg) is at rest on a frictionless table. Block B (mB=5.73kg) hangs off the edge of the table, as shown. Both blocks are released from rest. Using the 2-system approach, what is the acceleration of the system? a=

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Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.