Three blocks are suspended at rest by the system of strings and frictionless pulleys shown in the figure below, where w=55.0. N, and o=34.0^ o . What are the weights w_{1} and w_{2}

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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.