A Very Light Ideal Spring Stretches By $21.0 \mathrm {~cm}$ When It Is Used to Hang a 135-N Object

question 65

Multiple Choice

A very light ideal spring stretches by $21.0 \mathrm {~cm}$ when it is used to hang a 135-N object. What is the weight of a piece of electronic equipment that would stretch the spring by $44.9 \mathrm {~cm}$ if you hung the equipment using the spring?

• A)289 N
• B)63 N
• C)176 N
• D)405 N

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