Refer to the Worksheet shown, set up to calculate the displacement of a spring. Hooke's law states that the force (F, in newtons) applied to a spring is equal to the stiffness of the spring (k, in newtons per meter) times the displacement {x, in meters): F = kx.
Cell A3 contains a data validation list of springs. The stiffness (cell 83) and maximum displacement (cell C3) values are found using a VLOOKUP function linked to the table shown at the right side of the worksheet. These data are then used to determine the displacement of the spring at various mass values. A warning is issued if the displacement determined is greater than the maximum displacement for the spring. Use this information to determine the answers to the following questions.
- a. Write the expression, in Excel notation, that you would type into cell 86 to determine the displacement of the spring. Assume you will copy this expression to cells 87 to B 17.
- b. Fill in the following information in the VLOOKUP function used to determine the maximum displacement in cell C3 based on the choice of spring in cell A3.
=VLOOKUP(_(1)__,_(2)_,_(3)_,_(4)_)
- c. Fill in the following information in the IF function used to determine the warning given in cell C6, using the maximum displacement in cell C3. Assume you will copy this expression to cells C7 to C17.
=IF(_(1)_,_(2)_,_(3)_)
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