Cinderella11 Cinderella11
  • 13-12-2016
  • Physics
contestada

A student drops a rock from a bridge to the water 12m below. How many seconds does it take the rock to hit the water?

Respuesta :

mathssydney
mathssydney mathssydney
  • 13-12-2016
r = [tex] \frac{g t^{2} }{2} [/tex]
r - displacement or height
t - time taken
g = 10 m/s-2
t = square root from 2r/g = [tex] \sqrt{ \frac{2 x 12}{10} } [/tex] = 1.5 seconds
Answer Link

Otras preguntas

Help me please with this question
What did Spain gain from helping the Americans win the Revolutionary War? A. Ransom from the families of British prisoners B. New colonies on the African contin
the table below shows the scores from the women's gymnastics competition at the 2008 Benijing Olympics:fei Cheng: 15.940Shanshan li: 15.37Gabriela Dragoi: 15.32
why has Razia Sultan opposed by society​
Please help me with this I'm being timed
What does priam do with helen after the death of Paris?
What caused the economy of the Ottoman empire to vastly improve?
what value of x makes the equation 66x = 6 true
Can somebody help plzz
Jordan wants to prove △PQR≅△STU using a sequence of rigid motions. This is Jordan's proof. Translate △PQR to get △P'Q'R' with R'=U. Then rotate △P'Q'R' about po