Mathematics: Two forces are given by j = (-2,1] and K = (-5,3), in Newtons. What is the magnitude of j+k ?

Two forces are given by j = (-2,1] and K = (-5,3),

Ответ:

ashleyrover11

01.02.2022

Mathematics

$\sqrt{65}$

Step-by-step explanation:

The magnitude of a vector < x, y > is calculated as

| < x, y > | = $\sqrt{x^2+y^2}$

Thus

j + k = < - 2, 1 > + < - 5, 3 > = < - 2 - 5, 1 + 3 > = < - 7, 4 >

Then

| < - 7, 4 > | = $\sqrt{(-7)^2+4^2}$ = $\sqrt{49+16}$ = $\sqrt{65}$

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Ответ:

2021andrewkell

13.12.2022

Mathematics

His science teacher says “Thank you I will grade it after school” when it’s after school the teacher checks it and Akita gets an A because she is smart and helped her :)

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Two forces are given by j = (-2,1] and K = (-5,3), in
Newtons. What is the magnitude of j+k ?

Ответ:

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