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Nataly [62]
3 years ago
10

How does this pendulum demonstrate the law of conservation of energy?

Physics
1 answer:
muminat3 years ago
4 0

Answer:

I'm sorry but I dont really know this answer

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A 62 kg bungee jumper jumps from a bridge. She is tied to a bungee cord whose unstretched length is 12 m. She falls a total of 3
Andrew [12]

Answer:

k = 104.46 N/m

Explanation:

Here we can use energy conservation

so we will have

initial gravitational potential energy = final total spring potential energy

as we know that she falls a total distance of 31 m

while the unstretched length of the string is 12 m

so the extension in the string is given as

x = L - L_o

x = 31 - 12 = 19 m

so we have

mgH = \frac{1}{2}kx^2

62(9.81)(31) = \frac{1}{2}k (19^2)

k = 104.46 N/m

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