Question # 1

To make a body more stable ________ should be lowered:

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Axis of rotation

Center of gravity

Stabilty

None

It base of a right angled triangle is 3 cm and its perpendicular is 3 cm.Then its hypotenuse will be

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2 cm

4 cm

6 cm

5 cm

Perpendicular / hypotenuse is equal to:

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Cosθ

Tanθ

Cosecθ

Sinθ

Number of factors on which torque depends :

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2

3

4

5

The symbol of sigma is :

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Σ

m

=

$

Parallel forces are those whose:

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^{Times of action are parallel}

Points of action are different

More than one forces

All of the given option

Sin 45^ois

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0.707

0.5

1

0.2

Torque is a ___________ quantity.

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Vector

Scalar

Base

All of these

Turning effect of a force is called:

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Torque

Moment

Couple

Torque and momentum

A body is in equilibrium when its:

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Acceleration in uniform

speed in uniform

Speed and Acceleration are uniform

Acceleration is Zero.

The formula of torque is:

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L= F x E

E = F x t

t = F x L

E = F x L

A couple is formed by

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Two forces perpendicular to each other

Two like parallel forces

Two equal and opposite forces in the same line

Two equal and opposite forces not in the same line

A force of 10 N is making an angle of 30o with the horizontal. Its horizontal component will be

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4N

5N

7N

8.7N

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