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