# Fluid mechanics lab-experiment

Included are my labs sheets, data I calculated, and a poor sketch of a graph at this stage. On page 52 would someone please help me to answer all the questions and the one pertaining to my graph?

See attached file for full problem description.

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#### Solution Preview

Please see the attached file.

Answer:

(1)

I think that the problem is with the measurements and the formula used. In the formula Wi is given, while you are measuring the mass Wo of the object. Hence Wi should be written in terms of Wo.

Hence

As Wo is measured in Kg, which is the unit of mass to convert it into weight, we have to multiply it with g (acceleration due to gravity), which cancelled g from denominator.

As the volume is measured in terms of mass of the displaced water the volume of the object is given by V/w. As well as the density is required in Kg/cm3, the volume should be written as (V/)*106 cm3 = V*103 if V is in Kg and V if it is in gram. (Remember the density of water is 1 gm/cm3)

Hence the final farmula should be

Calculations:

Object Wo (Kg) V(gm)

Large Rectangle 0.249 92 2.707*10-3

Large Square 0.374 45 8.311*10-3

Cylinder 0.088 31 2.839*10-3

For the second set

Object Wo (Kg) V(gm) ...

#### Solution Summary

Calculations and discussions about the results obtained from a lab experiment on fluid mechanics.