Acme Scale's
Mathematical Analysis of
Marist Corp. and Immaculata Corp. Springs
The Problem: The cost of the springs we presently use in our mass scales have
doubled. We have identified two companies that sell a comparable spring at a
substantially lower price. The Marist Spring Corporation spring is
22
cm in length and the spring from the
Immaculata Spring Corporation
has a length of 4 cm. We have decided to evaluate the quality of these
springs based on the criteria below. We will pick the spring that bests meets
the criteria below.
The following objectives need to be met before we decide which spring to
purchase.
Purpose:
Use plotting software to:a) determine the mathematical relationship between force and stretch for both springs.
b) calculate the spring constant of each spring using the slope of an F vs. x plot (NOTE TO STUDENT k=F/x - the slope of line = spring constant)
c) identify the spring that comes closest to exhibiting the properties of an ideal spring (NOTE TO STUDENT x = stretch)
Notes from teacher discussion:
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Each person in your group should:
1. Use Excel to plot F vs. x (stretch) for each spring
a) put stretch data in the 1st column (x) and Force data in the 2nd column (y)
b) include a title for each plot, i.e. Marist Spring Data or Immaculata Spring Data
c) choose linear (straight line)
2. On one sheet of paper, make a data table for the Marist Data and the Immaculata Data
a) include a title for each table, i.e. Marist Spring Data or Immaculata Spring Data