A 2.0 kg wood block is launched up a wooden ramp that is inclined at a 32 ∘ angle. The block's initial speed is 15 m/s . The coefficient of kinetic friction of wood on wood is μk=0.200.   What vertical height does the block reach above its starting point?   What speed does it have when it slides back down to its starting point?

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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.