Vecofrs

Question 1

Magnitude direction firm for a vector

Answer 1

R, theta,

Where r is magnitude

Theta is angle measured from positive x axis anti lok. wise

Question 2

Component form

Answer 2

In terms of I and j
2hich are the unit vectors which have magnitude one in x and y direction

Question 3

What is magnitude if the vector also called

Answer 3

The modulus

Question 4

Convert From magnitude angle form is using cos amd from normal to mangntiufe able?

Answer 4

Find magnitude by squaring and sarurooting

Draw diagram and find angoe

Question 5

NO , MAGNTIUDE ANGLE FORM HOW DONYOU DI AGLE

Answer 5

it’s angle , anti-clockwise from x posit be, UNTIL IT TOUCHES R!

Question 6

Multiply and adding?

Answer 6

Lit multiply everything and add I and j separately

Question 7

For two vectors to be equal, what must they have!

Answer 7

The same magntiude and direction, but they don’t have to start from the same place!

Question 8

Position before

Answer 8

Just fork 0, so if two have the same then same place

Question 9

How to do unit vector in thr direction of a vector A

Answer 9

Basically if same direction= parallel, so some multiple must be able to factorise out, and this must also make it one

So find the magnitude and divide bith by this, and this is answe

Question 10

What about parallel stariaght lines

Answer 10

Parallel has ti have some scalar multiple

Statisght aswlel, but starting from a common ooint

Question 11

Why do do you do thst thing in vector question

Answer 11

Think about it , there must be something , say x, yiu can take out of the equation so that what’s inside is = to vector, otherwise not possible ti be parallel

Thus if you take out x , gotta divide by x too

Now make two simukatenius

And solve for k!

Question 12

Remember angles in semicircle 90, so if it is, then longest side dismeter , and can work out whatever circle you want from there