A 2.00 KG brick falls from the top of a building 6.00 M above the ground. What is the kinetic energy of the brick just before it reaches the ground

the kinetic energy of the brick before it reaches the ground is 117.6 J.

Explanation:

Given;

mass of the brick, m = 2 kg

height of the building, h = 6 m

The kinetic energy of the brick before it reaches the ground is maximum.

Based on the principle of conservation of energy, the maximum potential energy = maximum kinetic energy

K.E = P.E = mgh

where;

g is the acceleration due to gravity = 9.8 m/s²

K.E = 2 x 9.8 x 6

K.E = 117.6 J

Therefore, the kinetic energy of the brick before it reaches the ground is 117.6 J.

answer: the answer is a

a and b sometimes have a positive value