Question # 1

A force of 10N makes an angle 30o with y axis. Then magnitude of x -component is.

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5 N

8.66 N

10 N

Zero

The direction of null vector can be

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(+) ve

(-) ve

Arbitrary

Zero

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Unit vector

+ve of a vector

Resultant vector

-ve of a vector

Name the quantity which is a vector.

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Speed

Force

Temperature

Density

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

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

Direction of a vector in space requires

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Two axis

Three axis

Four axis

Both a and b

Which is the example of vector quantity

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Torque

Speed

Density

Work

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

Vectors have

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Numerical value

Directional

Both a and b

None of these

A force of 100 N makes an angle of 60o with Y- Axis, its horizontal component is.

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50 N

60 N

70.7 N

86.6 N

The magnitude of A will be

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Zero

A²

1

A

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

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5

4

3

2

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

The subtraction of a vector is equivalent to the addition with

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Same direction

Perpendicular direction

Reversed direction

All of these

The force and torque are analogous to

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Velocity

Mass and weight

Moment of Inertia

Each other

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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