Aerodynamics

7/16/99

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Aerodynamics 

Introduction 

Viscosity is responsible for two types of force:

These drag forces act in a different way over the objects. They depend on the objects’ shapes.

Streamlined bodies

Bluff bodies

Drag forces and shapes

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Purpose

Experimental design

Three people with different mass rode a bike until they reached an initial velocity (vi) at a certain position (xi).

At that point they kept going until they coasted a distance of 100 ft (xf). The velocity at the 100 ft mark was the final velocity (vf).

PPT Slide

With these parameters we were able to calculate the acceleration of the bicycle using one of the kinematics equations.

Results

Analysis of Results

If no external forces were acting over the bicycle, the acceleration would equal zero.

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Because the acceleration was negative, we know that the force acting over the bicycle was an opposing force.

Conclusions

Conclusions

Authors: Dave Bahamundi, Dawn Rubulotta, Sandy Schroerlucke