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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.

User Samu Lang
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1 Answer

2 votes

Answer:

It will take 8.80 sec to fall from the building

Step-by-step 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
g=9.8m/sec^2

We have to find the fall time

According to second equation of motion
h=ut+(1)/(2)gt^2

So
380=0* t+(1)/(2)* 9.8* t^2


t^2=77.55

t = 8.80 sec

User Siannopollo
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