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.

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

We have to find the fall time

According to second equation of motion

So

t = 8.80 sec

a and c

c is 100% but i am confused in a

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