関連ワード:  give an example of negative work done    give an example of negative work done by a body    give an example of negative work done class 9    give an example of negative work done by a force    give me an example of negative work done    give an example of positive and negative work done    give one example of negative work done    give two examples of negative work done    give some example of negative work done    give three examples of negative work done  
結果 : give an example of negative work done