the hikers want to know whether Callie or Jerry is feeling the most pull from Earth's gravity

Answer 1

The hikers can determine who is feeling the most pull from Earth's gravity by comparing their respective weights. Gravity affects objects based on their mass, so the person with the larger weight will experience a greater pull from gravity. By measuring their weights using a scale or some other method, the hikers can determine whether Callie or Jerry is feeling the most pull from Earth's gravity.