関連ワード:  write 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    write two examples of negative work done    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 some example of negative work done    give one example of negative work done class 9  
結果 : write an example of negative work done