Lesson 3: Vectors

Question 1

If two vectors are perpendicular to each other, how should you add them? [___]

Revolt · Accepted Answer

Use the Pythagorean theorem.

Question 2

If two vectors are not perpendicular to each other, how should you add them? [___]

Revolt · Accepted Answer

Resolve each vector into its x and y components.

Question 3

[___] km

Revolt · Accepted Answer

220

Question 4

[___] km

Revolt · Accepted Answer

⇒ 3.5: 101280; Part 2: 2.9; 3.5

Question 5

[___] m

Revolt · Accepted Answer

165.5

Question 6

A hiker leaves her camp and walks 3.5 km in a direction of 55° south of west to the lake. After a short rest at the lake, she hikes 2.7 km in a direction of 16° east of south to the scenic overlook.

Revolt · Accepted Answer

5.6; 77

Question 7

[___] m

Revolt · Accepted Answer

Part 1: 101282; Part 2: -137.4; 294.6

Question 8

[___] m/s

Revolt · Accepted Answer

⇒ 31: 101284; Part 2: 23; 31

Question 9

[___] km

Revolt · Accepted Answer

⇒ 5.6: 101286; Part 2: 77; 5.6

Question 10

Question 101286

Revolt · Accepted Answer

101278

Lesson 3: Vectors Answers

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