I understand the meaning of transverse and longitudinal waves, but I'm still confused with the edges of elasticity, like perfectly elastic, and perfectly inelastic. Elasticity (to me) has to fulfill 2 conditions as described here, the body must resist a distorting influence and must return to its original size and shape when that influence or force is removed.
So a perfectly elastic object will have a super resistance that it won't bend at all? And in this case the second condition won't have a chance to be applied - thus even if the force is removed?
While a perfectly inelastic object will absolutely deform with no resistance at all, and when the force is removed, will get directly back to its original shape.
Recalling the experiment of a rope, fixed in one end, and in the other end moved up and down fast vertically (back to the original horizontal level). Let's discuss the 2 extreme cases and whether a wave will happen or not in simple terms please without introducing formulae.
The motivation behind my interest in the "elasticity" topic is one sentence I read in my student's book which says that elastic waves can be transverse and longitudinal. I can imagine a longitudinal wave (the horizontal spring example), but was interested in the case of transversal elastic wave, thus started to ask whether the transverse wave can be elastic; which it can. So I thought that understanding the extreme cases of elasticity can help. But we can leave that to another question.