PhysCasts: Stopping a Rotating Satellite
Rowlands, W. (Wayne) (2013)
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?