Question # 1

Parallel vectors of same magnitude will be

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Equal

Opposite

Both a and b

None of these

The subtraction of a vector is equivalent to the addition with

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Same direction

Perpendicular direction

Reversed direction

All of these

Which is the example of vector quantity

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Torque

Speed

Density

Work

What would encourage trade between two countries

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Different tax system

Frontier checks

National currencies

reduced tariffs

Direction of a vector in space requires

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Two axis

Three axis

Four axis

Both a and b

The resultant of two forces 3 N and 4 N acting at right angle to each other is

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7 N

5 N

4 N

1 N

Usually the x-axis is taken as

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Vertical axis

Horizontal axis

+ve axis

-ve axis

A direction of torque is

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Along the position vector r

Perpendicular to both r and f

Along the direction of force F

Opposite to the direction of r

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Unit vector

+ve of a vector

Resultant vector

-ve of a vector

The magnitude of A will be

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Zero

A²

1

A

When a fore of 100 N is acting on an object along x-axis then its vertical component will be.

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50 N

0 N

25 N

10 N

Vector has both of its components are negative lies in

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1st quadrant

2nd quadrant

3rd quadrant

4th quadrant

The angle between x-axis, y-axis and z-axis is

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45°

60°

75°

90°

Minimum number of unequal forces whose vector sum can be zero are.

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5

4

3

2

Head to tail rule is used for

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Addition of vectors

Subtraction of vectors

Multiplication of vectors

Division of vectors

The direction of null vector can be

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(+) ve

(-) ve

Arbitrary

Zero

Dot product of vector with itself is.

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Zero

2 A

A²

A

The force and torque are analogous to

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Velocity

Mass and weight

Moment of Inertia

Each other

The components of a vector which are perpendicular to each other are called

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Horizontal components

Vertical components

Rectangular components

All of these

The resultant of two forces 3N and 4 N acting at right angle to each other is.

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5 N

6 N

1 N

7 N

Dot product of two non zero vectors is zero it angle between them is.

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30^o

60^o

45^o

90^o

The sum of two or more vectors will be a single vector called

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Component vector

Position vector

-ve vector

Resultant vector

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Force 12 N and 5 N are add, the resultant con not be

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13 N

6 N

7 N

17 N

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