Question

Physics problem: A vector with 20 degrees is scaled to 10cm and is added to a vector with 80 degrees scaled to 15cm. When graphing them with a protractor, then adding them to find the resultant, what would the approx. equilibrant resultant be?

Answer 1

Did you get started and got stuck?

Answer 2

My peer solved the problem and got a resultant of 22.8 cm while I got ~17 cm.

Answer 3

I missed the day of the lab so I'm presuming that I did something wrong.

Answer 4

when adding vector you add x component to x component and y with y

Answer 5

So do you know how to find component of the vector

Answer 6

?

Answer 7

Would the component of the vectors with 10cm and 15 cm be [\tan^{-1} (15/10)\]

Answer 8

20 degree 10 cm
assuming 20 degree from positive x direction...
x component- 10 cos(20)
y component -10 sin(20)

Now do that to second vector then add them togther

Answer 9

On it right now. :)

Answer 10

Okay. Got it.

Answer 11

good

Answer 12

most of the time(NOT ALL THE TIME) x is cos() and y is sin()

Answer 13

Cool. For the some totals,
I got 12 for x and 18.2 for y.

Answer 14

sum*

Answer 15

Okay so my answer is 21.8 which is 1 cm off from my peer.

Answer 16

Yet, when I draw it with a protractor and measure the resultant it comes out a bit odd.

Answer 17

math is more accurate than measuring

Answer 18

lol It should seem so.

Answer 19

Thank you for your help. I'll figure the rest out.

Answer 20

you still here?