Which of the following situations requires overcoming the least amount of kinetic friction?
Pushing an empty refrigerator box down an icy path
Pushing an empty refrigerator box down a path
Pushing a refrigerator in its box down a path
Pushing a refrigerator in its box down an icy path
Detailed Explanation
Objects with more weight have more frictional force; thus, moving that heavier objects requires greater force. Additionally, the icy path has a lower coefficient of friction than the regular path. Because of these factors, the empty box on the icy path will be the easiest to move.
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