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Projectile Motion with air drag. A Computer Lab for Calculus Based Physics Dr. Richard Taylor Department of Physics & Engineering Muskingum University. www.muskingum.edu/~richardt. Overview. Developing an Algorithm Kinematics Dynamics Algorithm Implementing the Algorithm MATLAB Excel
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Projectile Motion with air drag A Computer Lab for Calculus Based Physics Dr. Richard Taylor Department of Physics & Engineering Muskingum University www.muskingum.edu/~richardt
Overview • Developing an Algorithm • Kinematics • Dynamics • Algorithm • Implementing the Algorithm • MATLAB • Excel • Calibrating the Program • Digitizing Real Data • Applying the Program • Determine the Initial Velocity • Turn Air Drag Off for Comparison
Developing an Algorithm:Kinematics Air drag is a variable force. Therefore, acceleration is not constant! But… If the time interval is small, then acceleration can be treated as a constant.
Developing an Algorithm:Algorithm Constants & Initial Values
Calibrating the Program Find the range for the no air drag problem by hand. Find the range using the program. Reduce the time interval in the program until the ranges agree.
Applying the Program:Determine the Launch Speed Adjust the launch speedin the program until the two curves overlap.
Materials can be downloaded fromwww.muskingum.edu/~richardt/aapt2013