A 54 g ice cube can slide without friction up and down a 30∘ slope. The ice cube is pressed against a spring at the bottom of the slope, compressing the spring 10 cm. The spring constant is 23 N/m . When the ice cube is released, what total distance will it travel up the slope before reversing direction?   Δs = 43 cm     The ice cube is replaced by a 54 g plastic cube whose coefficient of kinetic friction is 0.20. How far will the plastic cube travel up the slope?   ?????

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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.