Christinagarza392 Christinagarza392

19-12-2019
Physics

contestada

How long will the ball be in the air if the cliff is 120 m tall and the ball falls to the base of the cliff?

Respuesta :

Stefanisaska Stefanisaska

20-12-2019

Answer:

Explanation:

4.95s≈5s

Use equation :

h=G*t²/2

h=120m ----hight of cliff

G=9.81m/s²

t=?

-----------------------

h=G*t²/2

120m=9.81m/s²*t²/2

240m=9.81m/s²*t²

t²=240m/ 9.81m/s²

t²=24.46s

t=√24.46s²

t=4.95 s≈5s

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