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Scalar And Vector Quantities - SS1 Physics Past Questions and Answers - page 3

21

Two vectors with magnitudes of 8 units and 6 units are subtracted. The minimum magnitude of their resultant vector can be:

A

2 units

B

3 units

C

5 units

D

8 units

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22

When two vectors are added, the resultant vector is equal to the:

A

Sum of their magnitudes.

B

Difference of their magnitudes.

C

Product of their magnitudes.

D

Division of their magnitudes.

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23

The addition or subtraction of vectors involves considering both:

A

Magnitude and direction.

B

Magnitude only.

C

Direction only.

D

Neither magnitude nor direction.

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24

The resultant of two perpendicular vectors with equal magnitudes is:

A

Zero.

B

The sum of their magnitudes.

C

The difference of their magnitudes.

D

Their product.

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25

Given two vectors A = 3i + 2j and B = -2i + 4j, calculate the vector C = A + B.

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26

Given two vectors P = 5i - 3j and Q = 2i + 7j, calculate the vector R = P - Q.

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27

Given vector A = 4i - 6j and vector B = -2i + 8j, calculate the vector C = 2A - B.

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28

Given vector P = 3i - 4j and vector Q = -2i + 6j, calculate the vector R = P + Q - P.

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29

Resolution of a vector into its components involves:

A

Adding the magnitudes of the vector's components.

B

Subtracting the magnitudes of the vector's components.

C

Finding the product of the vector's components.

D

Finding the perpendicular projections of the vector onto coordinate axes.

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30

The resolution of a vector into its components is based on which principle?

A

Pythagorean theorem.

 

B

Law of conservation of energy.

C

Law of conservation of momentum.

D

Law of cosines.

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