Question

An object falls freely from 3.2 high above the moon surface , if it takes 2s or reach the surface , find the acceleration due to the moon's gravity.
Ps.(I know it's 1.6m/s^2 but I don't know how to get it )

Answer 1

An object falls freely from 3.2 high above the moon surface, if it takes 2s or reach the surface, find the acceleration due to the moon's gravity.

Ps. (I know it's 1.6m/s^2 but I don't know how to get it)

Solution

$$S = (a * t ^ {2}) / 2 =>$$ $$a = 2 * S / (t ^ {2})$$ $$a = 2 * 3.2 / (2^2) = 2 * 3.2 / 4 = 1.6$$