A Visually Complicated Vector Addition Problem using Component Vectors

A Visually Complicated Vector Addition Problem using Component Vectors

Assessment

Interactive Video

Physics

9th - 10th Grade

Hard

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The video tutorial covers a complex vector addition problem, where a slow velocity racer moves in three directions: west, north, and southwest. The problem is broken down into components, and a vector diagram is drawn using the tip-to-tail method. The associative property of vector addition is applied, and a data table is created to organize the vector components. The resultant vector is calculated using trigonometry, and its magnitude and direction are determined. The tutorial emphasizes the importance of breaking vectors into components and using diagrams to simplify complex problems.

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7 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the direction of Vector A in the problem setup?

East

West

South

North

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is the direction of vector C described?

45 degrees south of east

45 degrees north of west

45 degrees south of west

45 degrees north of east

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What mathematical function is used to find the y-component of vector C?

Cosine

Tangent

Sine

Cotangent

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What property allows the order of vector addition to be changed without affecting the result?

Associative Property

Distributive Property

Commutative Property

Identity Property

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the x-component of the resultant vector R?

60 cm

-60 cm

88.284 cm

-88.284 cm

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the magnitude of the resultant vector R?

60 cm

21.7 cm

88.3 cm

90.9 cm

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

At what angle is the resultant vector R directed?

13.8 degrees south of west

13.8 degrees south of east

13.8 degrees north of west

13.8 degrees north of east