of a Water Balloon Launcher
This web page was created in the
Spring Semester 2004 for
Professor Deardorff's Physics 24 class at The University of North
Carolina at Chapel Hill. From left to right, we are Wendy
Griffin, Jennifer Clayton, Catherine Tefft, and Debbie Haisch.
The purpose of this web page is to explore the physics of a water
The main physics
concept at work is
projectile motion, which is the two-dimensional motion of an object in
a gravitational field. To learn more about projectile motion
The general equations for projectile motion do not take into account
air resistance. From experience we all know air resistance does
change projectile motion, as well as the wind. The data gathered
for this experiment was taken on a rather blustery April day, with wind
speeds of 17 mph. Some background is needed about Newton's Law's
Motion and Bernoulli's equation relating the pressure and velocity to
the motion of fluids, to figure out how and why air
resistance changes projectile motion. The combination of these
two subjects is called aerodynamics.
To learn more about aerodynamics click here.
To learn more about Newton or Bernoulli, click on their picture.
The shape of an
object influences its aerodynamics, and thus the amount of air
resistance, or drag it experiences. The last part of the
experiment uses different types of fruit to test the effect of shape on
Created By: Jennifer Clayton
Last Updated: 4/13/04