On an open-reel tape deck, the tape is being pulled past theplayback head at a c

Question

On an open-reel tape deck, the tape is being pulled past theplayback head at a constant linear speed of 0.316 m/s. (a) If the radius of the film taken up so far (as shown in theupper part of the drawing) is 0.0554 m,find the angular speed of the take-up reel. I know the 1st one butI'm stuck on the second one
1 rad/s

(b) After 2.47 x103 s, the take-up reel is almost full, asthe lower part of the drawing indicates. The radius of film takenup so far is now 0.114 m. Find the average angular acceleration ofthe reel.
2_____________ rad/s2

On an open-reel tape deck, the tape is being pulled past theplayback head at a constant linear speed of 0.316 m/s. (a) If the radius of the film taken up so far (as shown in theupper part of the drawing) is 0.0554 m,find the angular speed of the take-up reel. I know the 1st one butI'm stuck on the second one
1 rad/s

(b) After 2.47 x103 s, the take-up reel is almost full, asthe lower part of the drawing indicates. The radius of film takenup so far is now 0.114 m. Find the average angular acceleration ofthe reel.
2_____________ rad/s2

Explanation / Answer

On an open-reel tape deck, the tape is being pulled past theplayback head at a c

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