A wave created by shaking a rope up and down is called a:
(According to me and certified experts) Transverse wave.
If this helps, then please give Brainliest!
I assume that the ball is stationary (v=0) at point B, so its total energy is just potential energy, and it is equal to 7.35 J.
At point A, all this energy has converted into kinetic energy, which is:

And since K=7.35 J, we can find the velocity, v: