True or false? I’m not sure
#Ture or false?
wide imp
mystic path
True or false? I’m not sure
Well, calculate both of their magnitudes first if you're not sure.
wide imp
Well, calculate both of their magnitudes first if you're not sure.
how do i calcute a value i dont have? How to i turn -2v into a value
mystic path
how do i calcute a value i dont have? How to i turn -2v into a value
You don't need to obtain an exact value.
Suppose the magnitude of v is |v|. Then what is the magnitude of -2v?
wide imp
-2|v|...im not sure what your asking honestly lol
mystic path
-2|v|...im not sure what your asking honestly lol
No, that's not correct.
Suppose a is a constant and v is a vector. Then |av| = |a||v|. The magnitude is always nonnegative, after all.
So, what would |-2v| be?
wide imp
2v, so that makes v shorter right? Just making sure that’s how this all works
mystic path
Yes.
Basically, |av|/|v| = |a|, as long as |v| is not zero.
When you multiply a vector by a constant, its length is multiplied by the absolute value of that constant.
wide imp
That makes sense, a lot of sense thank you. Do you mind talking Em through this one two…maybe one or two more. It really depends on how many I have. I just need help lol, my deadlines Friday and it’s killing me. I was so confident turning in one of the assignments…like 100 percent sure I got it all mostly right…only to be devastated lol
I don’t trust myself anymore lol
mystic path
Well, don't worry! You just need some practice.
To do this, draw an arrow parallel to the given one with the same length. However, it should start at the origin and point in the opposite direction.