Question

hello anyone good with vectors and finding the resultant?
1.) find the resultant
a. 11 units, south, and 6 units west
b. 7.5 units north, and 3.5 units east
c. 500 units west, and 400 units north
d. 7 units east, and 12 units south

Answer 1

You can find the answers to all these questions by sketching out the two vectors you're given, then drawing in the resultant to form a right angled triangle.

Since the resultant vector is the hypotenuse of the triangle, you can find its magnitude using the Pythagorean Theorem. Then you'll need to use some trigonometry to find the angle (the direction).

Answer 2

Aright cool, thank you.
my teacher was not the best on explaining how to do it.

Answer 3

Glad I could help. If you want to run your answers by me when you're done I'm happy to check 'em over!

Answer 4

i do have another question actually. since the Pythagorean theorem gets the hypotenuse. whats the formula for the angle? is it sin or cosin?

Answer 5

U can use
Sin
Or cosine

Answer 6

Can u tell me the result of ur first wuestion!

Answer 7

U know the formula of pythagorean theorem
Hypotenuse^2=leg^2+oposit^2

Answer 8

You can use sin, cos, or tan, as long as you use the right combination of sides in your equation.

Answer 9

ok so for a.) i got 12.5, 29 degrees, west of south.
would that be right?

Answer 10

12.5 is correct!

Answer 11

Tan theta=6/11
Theta=?

Answer 12

I think u can solve these problems by using parallelogram law too

Answer 13

alrighty this is what i got
a) 12.5, 29 degrees west of south
b) 8.3, 65 degrees east of north
c) 640, 51 degrees north of west
d) 14, 60 degrees east of west

Answer 14

I dont hv calculator!

Answer 15

uh oh haha

Answer 16

I think all r correct

Answer 17

Glad to help !!!!

Answer 18

yeah thank you

Answer 19

Welcome!!!

Answer 20

Medal????!!!!