idku
  • idku
Physics, theoretical question.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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idku
  • idku
I am hanging 5 different mass M(i) on the string. I have some initial height Yo and some height when a particular mass M(i) is added. M(i) are: 100, 200, 300, 400, 500 and grams. The heights where each mass is located are: Y1, Y2, Y3, Y4, Y5. The hanger, has a mass of M(h). I hang the mass with the hanger on the string. Then I calculate the weight by, W=( M(h)+M(i) )*g. The elongation (the stretch vertical distance) is: Yo-Y1. F = k * x k = F / x k = W / x k = [ (M h + M i) * g] / [ Yo - Y1 ] If I use this, I get unproportional values of k, for each ith mass. BUT, if I use the law without using the weight of the hanger, i.e. k = [ M i * g] / [ Yo - Y1 ] then, I get the proportional k values.
idku
  • idku
So what should I do to find k, THIS: k = [ (M h + M i) * g] / [ Yo - Y1 ] OR THIS: k = [ M i * g] / [ Yo - Y1 ] ???
anonymous
  • anonymous
Do you know why you are using F=kx?

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anonymous
  • anonymous
If it is a string, not a spring, than you shouldn't be using this equation.
IrishBoy123
  • IrishBoy123
if your start point is with the hanger, measure extensions from that point.
IrishBoy123
  • IrishBoy123
it's a linear relationship.

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