Chief Editor
Chief Editor
 Oct 12, 2022
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Two equal but unlike parallel forces have a different line of action produced.

Difficulty: Easy
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A:

A torque

B:

A couple

C:

Equilibrium

D:

Neutral equilibrium

The number of forces that can be added by head to the tail rule is:

Difficulty: Easy
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A:

2

B:

3

C:

4

D:

Any number

The number of perpendicular components of a force is:

Difficulty: Easy
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A:

1

B:

2

C:

3

D:

4

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A force of 10 N is making an angle of 30⁰ with the horizontal. Its horizontal component will be:

Difficulty: Easy
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A:

4N

B:

5N

C:

7N

D:

8.7 N

A couple is formed by:

Difficulty: Medium
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A:

Two forces perpendicular to each other

B:

Two like parallel forces

C:

Two equal and opposite forces in the same line

D:

Two equal and opposite forces not in the same line

A body is in equilibrium when its:

Difficulty: Easy
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A:

Acceleration is uniform

B:

Speed is uniform

C:

Speed and acceleration are uniform

D:

Acceleration is zero

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A body is in neutral equilibrium when its center of gravity:

Difficulty: Easy
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A:

Is at its highest position

B:

Is at its lowest position

C:

Keeps its height if displaced

D:

Is situated at its bottom

Racing cars are made stable by:

Difficulty: Easy
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A:

Increasing their speed

B:

Decreasing their mass

C:

Decreasing their width

D:

Lowering their centre of gravity

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