Question: A 8 0 0 0 - k g freight car rolls along rails with negligible friction. The car is brought to rest by a combination
A freight car rolls along rails with negligible friction. The car is brought to rest by a combination of two coiled springs as illustrated in the figure below. Both springs are described by Hooke's law and have spring constants with and After the first spring compresses a distance of cm the second spring acts with the first to increase the force as additional compression occurs as shown in the graph. The car comes to rest cm after first contacting the twospring system. Find the car's initial speed.
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