Question

Calculate the mass for an object with 5,000J of PE on top of a 200m tall building.

Answer 1

Refer to the photo taken.

Answer 2

2.5 [kg].

Step-by-step explanation:

1. initial formula is:

E=m*g*h, where E - energy described in the condition, m - required mass, h - height and g≈10 [N/kg];

2. according to the formula above:

`m=(E)/(gh); \ = > \ m=(5000)/(200*10)=2.5[kg].`