Question # 1

F_x= 4 N and F_y=3N what is F?

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5N

1.5 N

16 N

9 N

The net torque acting on a rotating body with uniform speed is:

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0

1

2

5

At what angle sin𝜽 and cos𝜽 has same values:

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30^o

45^o

60^o

90^o

When 10 N along positive x-axis and 7 N along negative x-axis are added by head to tail rule. The resultant force is:

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17 N

10 N

7N

3 N

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 force of 200 N is making an angle of 30°. What is horizontal component?

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173.2 N

100 N

600 N

None of these

The formula of y component of force ' F ' is:

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F cos 𝜽

F Sin 𝜽

F tan 𝜽

Tan^-1 𝜽

Racing cars are made stable by :

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Increasing their speed

Decrease their mass

Lowering their center of gravity

Decreasing their width

If force is capable of rotation a body in clockwise direction it is :`

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Clockwise

Anticlockwise

It has no direction

Nil

Anticlockwise torque is taken:

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Negative

Neutral

Positive

Nil

If there is no change in state of motion, then the body is said be i:

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Rest

Motion

Equilibrium

Rest & motion

To make a body more stable ________ should be lowered:

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Axis of rotation

Center of gravity

Stabilty

None

The turning effect of force is called:

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Torque

Parallel force

Equilibrium

Couple

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9th Class Physics Chapter 4 Turning Effect of Forces English Medium KPK Boards Online Mcqs MCQs With Answers

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