4 ms·
Isn't there an unstated simplification here that: * the tape is perfectly flexible * the tape has been rolled with absolutely no gap between layers?
by tapeaway 2y ago
Isn't there an unstated simplification here that:
* the tape is perfectly flexible
* the tape has been rolled with absolutely no gap between layers?
- mmmmmmmike 2y agoYeah, and even given that, there’s the question of how exactly it deforms from its flattened shape to make a spiral (and if this changes the area). I wouldn’t agree with the “correct” answer if the tape was very thick, but given that the answer is .005 cm, it’s probably thin enough that such an approximation is okay.