Physics I
posted by David .
I have this vector that is confusing me I know what I need to do but the components of these vectors are confusing me.
Problem:
You are standing at point with coor dinates (1m, 1m, 2m) another erson is at r(t)=(8m)i  (3m/s^3) t^3 j + (4m/s^2) t^2 k Find distance between you and other person at t=1s.
How do I deal with those m and m/s^3 in the components
Thanks

find position at t=1 of the other person.
Then, distance=sqrt((xxo)^2 + (yy0)^2 + (zzo)^2 )