Home > Courses > 1P21_Sternin > Introduction Problem-solving strategy read and re-read; itentify what is known/unknown make a drawing use the laws of Physics to establish formal relationships ($\vec{F}=m\vec{a}$) perform algebraic manipulations to get the final result substitute numerical values; watch significant figures does it make sense? Marking: 1-4 worth 80-85%, 5-6 worth 15-20%.