The spring shown in the figure is compressed 43cm and used to launch a 100 kg ph

Question

The spring shown in the figure is compressed 43cm and used to launch a 100 kg physics student. The track is frictionless until it starts up the incline. The student's coefficient of kinetic friction on the 30degree incline is 0.11. (Figure 1) What is the student's speed just after losing contact with the spring? Express your answer to two significant figures and include the appropriate units. How far up the incline does the student go? Express your answer to two significant figures and include the appropriate units.

Explanation / Answer

Part A v = 12.162 m/s Part b h = 28.76 m

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