Question

When you lift an apple from a table to your mouth to enjoy its deliciousness, then

• A. P.E of the apple increases.
• B. P.E of Earth decreases
• C. P.E of Earth-apple system increases
• D. P.E of Earth-apple system decreases.

Answer 1

The correct option is C P.E of Earth-apple system increases

Potential energy is the shared property of a system. In this case, the potential energy of Earth - apple system increases as the external agent (You) have done some positive work.