Çözüldü Kinematics and Free Fall Problem (7th Grade)

From Santa Rosa Junior (Two-Year Community) College: (I have added an extra question between the parentheses.)

The distance, s, in feet, traveled by a body falling freely from rest in t seconds is approximated by the function s(t) = 16t^2. An experimenter on a ladder releases a marble from rest. The marble takes 3 seconds to fall to the ground. How high was the marble when it was released (and what is the gravitational acceleration)?

S = 16·3^2 = 16·9 = 144 feet
Gravitational Acceleration as feet per second squared: g (ft / s^2) ===> used only in the US, Liberia, and Myanmar.
(1 / 2)·g·3^2 = 144 ⇒ g = 32 ft / s^2.

https://wetalldid.wordpress.com/wp-...011-intermediate-algebra-richard-kavinoky.pdf
(1st Question, Answers: the last page)