Question

An object dropped from a height of h feet will take t seconds to fall all the way to the ground, according to the

following equation.
16t2 - h = 0
The Eiffel Tower in Paris, France is 900 feet tall.
How many seconds will it take an object dropped from that height to fall all the way to the ground?

Answer 1

7.5 seconds.

Explanation:

16t^2 - h = 0

16t^2 - 900 = 0

t^2 = 900/16

t = √900/√16

= 30/4

= 7.5 seconds.