In the figure provided, three balls of equal masses are released from the ground. If they are released with equal speeds, which ball has the largest speed when it hits the dotted line? They all have the same speed. Ball a has the largest speed. Ball b has the largest speed. Ball c has the largest speed.

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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.