- The statement "Sunlight is a kind of solar energy " is irrelevant

- As the mass of an object increases , the weight of that object will increase
- The rock has the greatest mass among four collected rocks
- Therefore, the rock has the greatest mass has the greatest weight

- The rock has the greatest mass has the greatest weight
- Heaviest means greatest mass / weight
- So, the rock with greatest weight feels the heaviest

Hence, the rock with greatest weight feels the heaviest
[Question]Barry collected four different rocks. The rock with the GREATEST mass will feel the ___.
[Context]- Heaviest means greatest mass / weight 
- As the mass of an object increases , the weight of that object will increase 
- Sunlight is a kind of solar energy 
- The rock has the greatest mass among four collected rocks