Estimate how long it took King Kong to fall straight down from the top of the Empire State Building (380 m high). Express your answer using two significant figures.

Respuesta :

Answer:

It will take 8.80 sec to fall from the building

Explanation:

We have given height pf the state building h = 380 m

Initial velocity will be 0 m /sec

So u = 0 m/sec

Acceleration due to gravity [tex]g=9.8m/sec^2[/tex]

We have to find the fall time

According to second equation of motion [tex]h=ut+\frac{1}{2}gt^2[/tex]

So [tex]380=0\times t+\frac{1}{2}\times 9.8\times t^2[/tex]

[tex]t^2=77.55[/tex]

t = 8.80 sec