Homework Help: 3Dvectors ?

what is R₀?

 

position...i'm assuming its find r1

 

Given; A=<3,-2,-4>m/s^2 , V0=<1,2,3>m/s, R0=<30,-80,40>m, T=8s.

duh, i should have looked at the units.....maybe i should get some sleep(it is 1:26am here)


well, i'd go with [tex]\vec{R}=\vec{R_0}+\vec{v_0}t+\frac{1}{2}\vec{a}t^2[/tex] to find r. you can use [tex]\vec{v}=\vec{v_0}+\vec{a}t[/tex] to find v. [tex]\vec{v}_{avg}=\frac{\vec{v}+\vec{v_0}}{2}[/tex] to find out avg velocity.


edit: yes, it is a 3-d vector question