008 10.0 points
The tape in a videotape cassette has a total
length 279 m and can play for 1.9 h. As the
tape starts to play, the full reel has an outer
radius of 49 mm and an inner radius of 13 mm.
At some point during the play, both reels will
have the same angular speed.
What is this common angular speed?
Answer in units of rad/s.
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