- #1
chusifer
- 7
- 0
hello, i just started learning index notation in my engineering class, and I am having some trouble. one of the problems on my homework was:
putting this in index notation:
[tex]\vec{f}=g \frac{m_1m_2}{\vec{r}^2} \ \frac{\vec{r}}{\sqrt{\vec{r}^2}}[/tex]
and then another problem that reads...
consider a plane with outer normal vector [tex] v_i [/tex] on which a force is acting [tex] f_i [/tex]. what are the normal components of force on the surface? wut is the max shear component? what direction is the max shear component pointing? write this in index notation.
i can figure out the components...just not how to write them in index notation. so any help here would be appreciated. thanks
putting this in index notation:
[tex]\vec{f}=g \frac{m_1m_2}{\vec{r}^2} \ \frac{\vec{r}}{\sqrt{\vec{r}^2}}[/tex]
and then another problem that reads...
consider a plane with outer normal vector [tex] v_i [/tex] on which a force is acting [tex] f_i [/tex]. what are the normal components of force on the surface? wut is the max shear component? what direction is the max shear component pointing? write this in index notation.
i can figure out the components...just not how to write them in index notation. so any help here would be appreciated. thanks
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