This PhysCast will apply Newton's second law of motion in its rotational form. A cylindrical satellite is 1.4 m in diameter with its 940 kg mass distributed uniformly. The satellite is spinning at 10 rpm but must be stopped for repairs. Two rockets provide 20 N of thrust each and are mounted on opposite sides to fire tangentially. How long must they be fired to stop the rotation?

Stopping a rotating satellite (PhysCasts)

PhysCasts are narrated screen video recordings explaining physics concepts and their application to problem-solving. They have been produced by Swinburne University of Technology's Faculty of Science, Engineering and Technology. The series is part of an ongoing collaborative research project to develop high quality resources and investigate the effectiveness of screencasts to support learning. PhysCasts are licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License: http://creativecommons.org/licenses/by-nc-nd/3.0/.

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Stopping a rotating satellite (PhysCasts)

Stopping a rotating satellite (PhysCasts)