Question

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

Answer 1

c 8.80 s

Step-by-step 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 +
`(1)/(2)` g t²

H is the height

t is the time taken

g is the acceleration due to gravity

380 = (0 x t) + (
`(1)/(2)` x 9.8 x t²)

380 = 4.9t²

t² = 77.55

t = 8.8s