Question # 1

The subtraction of a vector is equivalent to the addition with

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Same direction

Perpendicular direction

Reversed direction

All of these

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

The magnitude of A will be

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Zero

A²

1

A

The resultant of two vectors having magnitude 12 N and 8 N can not be

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2 N

20 N

10 N

16 N

Parallel vectors of same magnitude will be

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Equal

Opposite

Both a and b

None of these

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

Vectors have

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Numerical value

Directional

Both a and b

None of these

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

Dot product of vector with itself is.

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Zero

2 A

A²

A

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 force and torque are analogous to

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Velocity

Mass and weight

Moment of Inertia

Each other

Which is the example of vector quantity

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Torque

Speed

Density

Work

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Unit vector

+ve of a vector

Resultant vector

-ve of a vector

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

Head to tail rule is used for

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Addition of vectors

Subtraction of vectors

Multiplication of vectors

Division of vectors

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

Direction of a vector in space requires

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Two axis

Three axis

Four axis

Both a and b

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Physics Fsc Part 1 Chapter 2 Online Test MCQs With Answers

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