Vector Addition and Subtraction

Question 1

Choose the expression that produces the following resultant vectors.

Revolt · Accepted Answer

6i + 9j =: 2a + b – 3c; 2j =: d – 4a – 2b; –8i + 13j =: 5(a – c) + 3(b – d); –10i – 7j =: c + 2(a – d) + b

Question 2

The angle between w and u is approximately [___]°.

Revolt · Accepted Answer

32.2

Question 3

2a + b – 3cc + 2(a – d) + bd – 4a – 2b ✔ 5(a – c) + 3(b – d)

Revolt · Accepted Answer

5(a – c) + 3(b – d)

Question 4

2a + b – 3c✔ c + 2(a – d) + bd – 4a – 2b 5(a – c) + 3(b – d)

Revolt · Accepted Answer

c + 2(a – d) + b

Question 5

The magnitude of w is approximately [___].

Revolt · Accepted Answer

26; The magnitude of w is approximately .: 26; The angle between w and u is approximately °.: 32.2

Question 6

[___], [___]

Revolt · Accepted Answer

⇒ 5: answer; ⇒ 3: 3; -1, 5

Question 7

[___], [___]

Revolt · Accepted Answer

5, 3

Vector Addition and Subtraction Answers