Final answer:
The potential energy of the coconut cannot be determined with the given options without specific information about the coconut's mass and height.
Step-by-step explanation:
To determine the potential energy of the coconut, we need more information such as its mass and height above the reference point. In physics, the potential energy of an object at height h is calculated using the formula PE = mgh, where m is the mass, g is the acceleration due to gravity (9.8 m/s2), and h is the height above the reference point. Without this information, we cannot calculate the potential energy of the coconut.
Looking at the provided context which is about energy conservation, none of the given options a. 10 J, b. 20 J, c. 30 J, d. 40 J can be directly linked to the coconut's potential energy question without the specific details about the coconut's mass and height.