Figure below shows a bead sliding on a wire. If friction forces are negligible and the bead has a speed of 2 m/s at A, what will be its speed at (a) point B? (b) point C? s0 cm 50 cm

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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.