Question

13. Potential energy is there store energy for when it's needed. If an object has a mass of 30 kg and a height of 25 meters, what's the potential energy ? The equatioh is E p =mgh .

Answer 1

7350 J

Step-by-step explanation:

The potential energy stored in an object is

`E_p = mgh`

where

m is its mass

g is the acceleration of gravity

h is the heigth of the object relative to the ground

In this problem:

m = 30 kg is the mass of the object

`g=9.8 m/s^2`

h = 25 m is the height

Substituting,

`E_p = (30)(9.8)(25)=7350 J`