A block with a mass of 3 kg is at rest initially beside a spring. The spring was compressed by 40 cm and please note that its constant is 100 N/m. The coefficient of sliding friction between the block and also the incline is said to be 0.5. Note that it is resting in an inclined plane (40 degrees).    a. how far will the block slide up the incline before it goes back to its original place? b. determine the speed of the block given that it is 0.60 m away from its first position.

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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.