Adaptation of a Physlet problem to work as a calculated question within WebCT.
Two dimensional motion.
This question looks for the java archive files in the webct_install_dirwebctuserclasses subdirectory (i.e.,
Text of Learning Exercise:
The orgininal problem may be viewed at target=_blank> http://webphysics.davidson.edu/physletprob/ch8_problems/ch8_1_kinematics/kinematics8_1_5.html. A ball with velocity vectors and components attached undergoes projectile motion. The question asks for the speed of the ball at a particular (random) time.
The modification utilizes the random parameter feature of the WebCT calculated question format. The advantage here is that you can allow unlimited attempts and encourage collaboration. Since the parameters are re-randomized on each attempt,
it is appropriate to report the correct answer after an incorrect submission.