What is the minimum number of vectors with UNEQUAL magnitudes whose vector sum can be zero?
help please!
a)two
b)three
c)four
d)five
e)six
2007-10-01 15:15:38 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Physics
Think triangle in three dimensions.
b) Three.
2007-10-01 15:19:35 · answer #1 · answered by Ben 3 · 0⤊ 0⤋
3
2007-10-01 22:18:41 · answer #2 · answered by Jr Levesque 2 · 0⤊ 0⤋
Imagine it geometrically--think of the vectors as a bunch of arrows that you can move around.
If their vector sum is zero, that means you can connect 'em all together, head to tail, in such a way that the head of the last one reaches exactly back to the tail of the first one.
Can you do that with just two vectors (if they have different lengths)?
Can you do it with three? four?
2007-10-01 22:24:03 · answer #3 · answered by RickB 7 · 0⤊ 0⤋
b. 3
2007-10-01 22:19:32 · answer #4 · answered by complexc25 2 · 0⤊ 0⤋
The answer is ....
b)Three
.
.
.
e.g.vector1=9m
vector2=-3m
vector3=-6m
2007-10-01 22:22:10 · answer #5 · answered by VIRAJ S 1 · 0⤊ 0⤋
b.
2007-10-01 22:26:02 · answer #6 · answered by Ed A 2 · 0⤊ 0⤋