Question

Find the magnitude of the following vector.
U = 8i + 15j

Answer 1

Magnitude is same as the length

Answer 2

i know... so would i just take the sqrt 8^2+15^2

Answer 3

Correct!

Answer 4

if its asking for the magnitude... would i place the formula or get a decimal?

Answer 5

i know it sounds like a silly question. but usually it tell me how to place the answer.. whether or not to round it off.... and this time it asks as if it is suppose to come with the sqrt

Answer 6

it seems the 8^2+15^2 is a perfect square

Answer 7

http://www.wolframalpha.com/input/?i=sqrt%288%5E2%2B15%5E2%29

Answer 8

oh forget it
i had written down the problem incorrectly... today i am just not doing well

Answer 9

however, if u dont mind, i need help with someother problems

Answer 10

il try... please open a new thread