Answered

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Calculate (a) how long it took King Kong to fall straight down from the top of the Empire State Building (380 m high). **** (use the data from above)

a 0.00 s
b 3.94 s
c 8.80 s
d 846 s

Sagot :

quasarJose

Answer:

c 8.80 s

Explanation:

Given parameters:

Height of Empire State Building  = 380m

Unknown:

Time taken for King Kong to fall  = ?

Solution:

To solve this problem, we use one of the kinematics equation.

The appropriate one is given below;

      H  = ut + [tex]\frac{1}{2}[/tex] g t²  

H is the height

t is the time taken

g is the acceleration due to gravity

            380  = (0 x t) + ( [tex]\frac{1}{2}[/tex]  x 9.8 x t²)

           380  = 4.9t²  

             t²  = 77.55

              t = 8.8s

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