Question # 1

Two vector can be added by simple arithmetical method when they are at an angle of.

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120^o

90^o

0^o

45^o

The magnitude of A will be

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Zero

A²

1

A

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

A force of 100 N makes on angle of 60^owith y axis, its horizontal component is.

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50 N

60 N

70.7 N

86.6 N

Vector has both of its components are negative lies in

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1st quadrant

2nd quadrant

3rd quadrant

4th quadrant

Usually the x-axis is taken as

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Vertical axis

Horizontal axis

+ve axis

-ve axis

A vector is denoted by

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Light face

Bold face

Both a and b

None of these

Vectors have

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Numerical value

Directional

Both a and b

None of these

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

The dot product of two vectors A and B will be zero, if angle between A and B is

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Zero

30^o

90^o

180^o

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

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45°

60°

75°

90°

The direction of vector in space is specified by

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1- angle

2- angle

3- angle

4 - angle

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

Maximum number of components of a vector may be

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Infinite

One

two

three

What would encourage trade between two countries

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Different tax system

Frontier checks

National currencies

reduced tariffs

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

The resultant of two forces 30 N and 40 N acting parallel to each other is.

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30 N

40 N

70 N

10 N

If r = 5 m and f = 4 N are along same direction, them torque is

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20 Nm

5 Nm

10 Nm

Zero

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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

The resultant of two vectors having magnitude 10 N and 8 N Can not be

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2 N

9 N

18 N

20 N

Parallel vectors of same magnitude will be

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Equal

Opposite

Both a and b

None of these

The force and torque are analogous to

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Velocity

Mass and weight

Moment of Inertia

Each other

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

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