A frictionless block of mass 0.5 kg slides down a ramp of height 0.2 m and onto a horizontal frictionless table. A circular frictionless wall forces the block to move in a circular path. Using gravity as 10m/s^2, calculate the vertical component of the net force on the block

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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.