contestada

A person skateboarding is part of a closed system that has 1,450 j of
mechanical energy. if the kinetic energy of the person increases from 200 j
to 825 j, what happens to the gravitational potential energy of the system?
o a. it decreases from 1,250 j to 625 j.
b. it decreases from 1,450 j to 1,025 j.
c. it increases from 1,250 j to 2,075 j.
o d. it increases from 625 j to 1,250 j.
i

Respuesta :

The gravitational potential energy of the system will decreases from 1,250 J to 625 J. Option A is corect.

What is the law of conservation of energy?

According to the Law of Conservation of Energy, energy can neither be created nor destroyed, but it can be transferred from one form to another.

The total energy is the sum of all the energies present in the system. The potential energy in a system is due to its position in the system.

TE=KE+GPE

Case 1;

1450 = 200 J+GPE

GPE=1450 -200

GPE=1250 J

Case 2;

1450 = 825 J+GPE

GPE=1450 -825

GPE=625 J

The gravitational potential energy of the system will decreases from 1,250 J to 625 J.

Hence, option A is corect.

To learn more about the law of conservation of energy, refer to https://brainly.com/question/2137260.

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