mechanics y2 Flashcards
1
Q
when something is due south west of the origin…
A
coefficients of i and j are equal and negative
2
Q
when something is due north of the origin…
A
i component = 0
3
Q
when something is due south of the origin…
A
j component = 0
4
Q
equation linking r(position vector) and v
A
r = r0 +vt
