darkstalkercs darkstalkercs

07-12-2021
Physics

contestada

What is the height of a building (in meters) if it takes a rock 8.2 seconds to drop from it's roof?

Respuesta :

machmillerg machmillerg

07-12-2021

Answer:

d = 329.81m

Explanation:

V_f = V_0+a*t

V_f = Velocity final

V_0 = Velocity initial

a = acceleration

t = time

V_f = (0m/s)+(9.81m/s²)*(8.2s)

V_f = 80.442m/s

d = ((V_f-V_0)/2)*t

d = distance

d = ((80.442m/s-0m/s)/2)*(8.2s)

d = 329.81m

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