関連ワード:  give two examples of negative work done    give two examples of negative work done class 9    give some examples of negative work done    give two examples of each negative work done    give example of negative work done by a body    give example of negative work done class 9    give two examples of positive negative and zero work done    give two examples of positive work done and negative work done    give three examples of negative work done    give five examples of negative work done  
結果 : give two examples of negative work done