Answer:
6 km is the right answer
hope it helps you
Explanation:
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You know I’m going to be honest I don’t feel like it
The flat sheet of paper has more surface area than the crumpled ball
To develop this problem it will be necessary to apply the concepts related to the frequency of a spring mass system, for which it is necessary that its mathematical function is described as

Here,
k = Spring constant
m = Mass
Our values are given as,


Rearranging to find the spring constant we have that,




Therefore the spring constant is 1.38N/m