A 28g rifle bullet traveling 210 m/s buries itself in a 3.6-kg pendulum hanging on a 2.8-m-long stri

[@ayshaghanawi9941]

You are a blessing from God

[@TheAnswerKey]

Glad I could help!

[@azamkhonakhrorkhodjaev2444]

Isn't the string that is attached to the pendulum, the adjacent and the when the pendulum moves up, that string position will be the hypotenuse?

[@takudzwadudu387]

co ask

[@chargd3050]

lifesaver

[@TheAnswerKey]

Glad I could help!

[@coulomb1]

Good stuff. What a complex questionnnn

[@TheAnswerKey]

Happy to help!

[@jacobfrater8714]

Hi great video! I was wondering why 2.8 is the hypotenuse and not 2.66?
Thanks!

[@takudzwadudu387]

co ask

[@Fifi-pg5rp]

me too

[@daneishhakim2268]

up!!

[@leafgreen4141]

Question: Why use arccos instead of cos?
Thank you
And why not use the Pythagorean theorem?

[@cryptic2610]

Way late, but in case it helps anyone else: arccos because he wants to find an angle measure, not a side length. And there is no reason you can't use the pythagorean theorem: that would also work

[@emmamoore2362]

Thank you!

[@TheAnswerKey]

You bet!

[@srirachacereal2453]

im always commenting lol but you explain these so well!!