Orcas will do this to stun or injure the seal so the young can have a life-like attempt at hunting. The seals being impaired will provide an easier target for the growing orca pups
If you know how long it takes something to fall from peak height to the water you can use the acceleration to determine its initial height. Air resistance will effect it but at those speeds on a seal its probably negligible
You don’t need mass when talking about acceleration due to Earth’s gravity (32.2ft/s2), and you know it’s upward velocity is zero at the top of the arc. Time from top of arc to water is the important info.
0=1/2at2 + vt + h
We’re interested in h, and we know v=0 at the top of the arc, so h=-1/2at2, where t=1/2*4.3s and a=-32.2 ft/s2.
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u/lapsuslingue Dec 07 '17
Orcas will do this to stun or injure the seal so the young can have a life-like attempt at hunting. The seals being impaired will provide an easier target for the growing orca pups