Question

Dane is standing on the moon holding an 8 kilogram weight 2 metres above the ground. How much energy is in the weight's gravitational potential energy store? (On the moon the gravitational field strength is 1.6 N/kg.)

Answer 1

If I'm right you use the formula E=mgh
so it would become E=8×1.6×2

Your answer is 25.6J (joules) :)

Answer 2

`E_g=25.6J`

Step-by-step explanation:

The gravitational potential energy represents the ability that a body has to perform work due to its position in a gravitational field. Therefore, this energy will depend on the height of the body with respect to a reference point, its mass and the gravitational field strength in which it is located.

So, is given by:

`E_g=mgh\\E_g=8kg*1.6(N)/(kg)*2m\\E_g=12.8N*2m=25.6J`