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Unformatted text preview: DISCUSSION PROBLEM [9.1]: answer ...
During a re-wind tape is “pulled” from one reel to the
DISCUSSION PROBLEM [9.1]: other ...
ω Take-up spool
“Free” spool R As tape collects on the left reel, which is driven by a
motor, the radius R increases; since v t = Rω , then so
does the linear speed of the tape from right to left.
During “play” a different drive arrangement is used ...
When you rewind an audio or video tape why does it because you can’t have the speed of the tape change wind up fastest when it has almost completed its task, during “play”! i.e., when the take-up spool is almost full? Two wheels “pull” the
tape past the playback
head at a constant speed. 1 ...
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- Spring '08