Question

a 1.5 kg brick is dropped from rest and hits the ground at a speed of 26m/s. calculated the gravitational potential energy of the brick before it was dropped

Answer 1

The gravitational potential energy (GPE) of an object is given by the formula:

GPE = mgh

where m is the mass of the object, g is the acceleration due to gravity (9.8 m/s^2), and h is the height from which the object is dropped.

In this case, we can calculate the GPE of the brick before it was dropped as follows:

GPE = mgh

= 1.5 kg x 9.8 m/s^2 x 0

= 0 Joules

Since the brick was at rest on the ground before it was dropped, its initial height above the ground was zero. Therefore, its GPE was also zero.

Step-by-step explanation: