The tape in a videotape cassette has a total length $250$ m and can play for $2\mathrm{.}5$ h$.$ As the tape starts to play, the full reel has an outer radius of $35$ mm and an inner radius of $10$ mm$.$

At some point during the play, both reels will have the same angular speed. What is this common angular speed?

Answer rating: 100% (QA)

To find the common angular speed at which both reels have the same angular speed we need to consider ... View the full answer