# Spring Physics Exam 2 #'s 6-10

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• 1.

### 6. In the figure, which diagram represents the vector addition,C = A + B?

• A.

I

• B.

II

• C.

III

• D.

IV

B. II
Explanation
Diagram II represents the vector addition C = A + B because it shows the two vectors A and B being added head-to-tail. The resulting vector C starts at the tail of A and ends at the head of B. This is the correct method of vector addition, where the magnitudes and directions of A and B are combined to determine the magnitude and direction of C.

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• 2.

### 7. In the figure, which diagram represents the vector addition,C = - A + B?

• A.

I

• B.

II

• C.

III

• D.

IV

C. III
Explanation
Diagram III represents the vector addition C = -A + B. In this diagram, vector A is shown in the opposite direction with a negative sign, and vector B is shown in the same direction. When we subtract vector A from vector B, we get vector C. Therefore, diagram III is the correct representation of the vector addition C = -A + B.

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• 3.

### 8. In the figure, which diagram represents the vector addition, C = A - B?

• A.

I

• B.

II

• C.

III

• D.

IV

D. IV
Explanation
Diagram IV represents the vector addition C = A - B because it shows the vector A pointing in one direction and the vector B pointing in the opposite direction. When we subtract vector B from vector A, we get vector C which is shown in Diagram IV. The other diagrams do not accurately represent the subtraction of vector B from vector A.

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• 4.

### 9. Which of the figures is not drawn head-to-tail?

• A.

I

• B.

II

• C.

III

• D.

IV

A. I
Explanation
Figure I is not drawn head-to-tail because the tail of the arrow does not connect to the head of the next arrow. The other figures (II, III, and IV) are all drawn head-to-tail, meaning that the tail of one arrow connects to the head of the next arrow in a continuous line.

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• 5.

• A.

II

• B.

III

• C.

IV

• D.

V

D. V
• 6.

### 8. In the figure above, which diagram represents the vector addition, C = A - B?

• A.

I

• B.

II

• C.

III

• D.

IV

D. IV
Explanation
Diagram IV represents the vector addition C = A - B. In this diagram, vector B is subtracted from vector A, resulting in vector C. The direction of vector C is determined by subtracting the direction of vector B from the direction of vector A. The magnitude of vector C is determined by subtracting the magnitude of vector B from the magnitude of vector A. Therefore, diagram IV correctly represents the vector addition C = A - B.

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• Current Version
• Mar 14, 2023
Quiz Edited by
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• Feb 01, 2015
Quiz Created by
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