関連ワード:  is speed a scalar or vector quantity explain    is force a scalar or vector quantity explain    is velocity a scalar or vector quantity explain    is speed considered a scalar or vector quantity explain your reasoning    is average speed a scalar quantity or a vector quantity explain    is mass a vector or scalar quantity explain    is speed a scalar or a vector quantity    is speed is a scalar quantity    speed is scalar or vector    is distance is a scalar or vector quantity why  
結果 : is speed a scalar or vector quantity explain