Yog tias muaj kev sib raug zoo ntawm lub zog ntawm ob qhov sib txawv, nws tau hais tias muaj kev sib raug zoo ntawm lawv. Kev sib raug zoo proportional zoo yog ib qho tshwj xeeb ntawm kev sib raug zoo linear, thiab inverse proportional kev sib raug zoo tsis yog linear kev sib raug zoo
