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The drawing shows three identical springs hanging from the ceiling. Nothing is attached to the first spring, whereas a W = 4.20-N block hangs from the second spring. A block of unknown weight hangs from the third spring. From the drawing, determine the spring constant (in N/m) and the weight of the block hanging from the third spring.

(a) the spring constant
N/m

(b) the weight of the block hanging from the third spring

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2 answers
  1. without the drawing...

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    bobpursley
  2. Coming from another student.... well done sir. I'm not gonna end up getting this right, but for future answers:
    first spring: 20cm
    second spring: 35cm
    third spring: 50cm

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