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At what portion of the Earth, the magnitude of Centrifugal force is felt minimum?

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Important Questions on Circular Motion

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Physics>Mechanics>Circular Motion>Centrifugal Force

A clock has a continuously moving second's hand of $0.1 m$ length. The average acceleration of the tip of the hand (in units of $m s^{- 2}$ ) is of the order of :

HARD

Physics>Mechanics>Circular Motion>Centrifugal Force

The coefficient of static friction between a small block and the surface of a horizontal turntable is

0.09

. The block is placed at a distance of

0.1 m

from the centre of the turntable. At time

t = 0 s

the turntable starts rotating from rest with a constant angular acceleration of

0.5 rad \cdot s^{- 2}

. The time at which the block starts sliding is

t_{s}

. Select the correct statement(s).

EASY

Physics>Mechanics>Circular Motion>Centrifugal Force

A body moving along a circular path due to a centripetal force having constant magnitude is an example of motion with ___ .

EASY

Physics>Mechanics>Circular Motion>Centrifugal Force

A particle is performing uniform circular motion along the circumference of a circle of diameter

50 cm

with frequency

2 Hz

. The acceleration of the particle in

m s^{- 2}

is:

HARD

Physics>Mechanics>Circular Motion>Centrifugal Force

A uniform rod of length

l

is being rotated in a horizontal plane with a constant angular speed about an axis passing through one of its ends. If the tension generated in the rod due to rotation is

T (x)

at a distance

x

from the axis, then which of the following graphs depicts it most closely?

HARD

Physics>Mechanics>Circular Motion>Centrifugal Force

A particle is moving with a uniform speed in a circular orbit of radius R in a central force inversely proportional to the

n^{t h}

power of R. If the period of rotation of the particle is T, then:

HARD

Physics>Mechanics>Circular Motion>Centrifugal Force

A particle is moving in a circular path of radius a under the action of an attractive potential

U = - \frac{k}{2 r^{2}} .

Its total energy is:

EASY

Physics>Mechanics>Circular Motion>Centrifugal Force

A car goes around uniform circular track of radius

R

at a uniform speed

v

once in every

T

seconds. The magnitude of the centripetal acceleration is

a_{c}

. If the car now goes uniformly around a larger circular track of radius

2 R

and experiences a centripetal acceleration of magnitude

8 a_{c}

. Then, its time period is

EASY

Physics>Mechanics>Circular Motion>Centrifugal Force

Two particles of same mass are moving in the circular paths

r_{1}

and

r_{2}

radius with same speed, the ratio of their centripetal forces is :

EASY

Physics>Mechanics>Circular Motion>Centrifugal Force

Identify the incorrect statement from the following:

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Physics>Mechanics>Circular Motion>Centrifugal Force

At 720 kmph, an aircraft does a horizontal loop with its wings banked at 45°. What is the loop's radius? Consider g=10ms2.

EASY

Physics>Mechanics>Circular Motion>Centrifugal Force

Which of the following does not demonstrate consistent circular motion?

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Physics>Mechanics>Circular Motion>Centrifugal Force

Which of these is not an example of uniform-circular motion?

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Physics>Mechanics>Circular Motion>Centrifugal Force

If the coefficient of friction between tyre and road is 0.5 and a circular road with a radius of 1000m has a banking angle of 45^o, the maximum safe speed of a car with a mass of 2000 kg is ___________

EASY

Physics>Mechanics>Circular Motion>Centrifugal Force

What is the Centripetal force (

F_{c}

) acting on a body of mass '

m

' and having centripetal acceleration '

a_{c}

' ?

EASY

Physics>Mechanics>Circular Motion>Centrifugal Force

Which of the following statements are correct in context of an object moving in uniform circular motion?

A. The direction of the motion changes at every point while moving in the circular path.

B. The motion of the object is an example of an accelerated motion.

EASY

Physics>Mechanics>Circular Motion>Centrifugal Force

A particle of mass

100 g

tied to a string is rotated along the circle of radius

0.5 m

. The breaking tension of the string is

10 N

. The maximum speed with which particle can be rotated without breaking the string is

EASY

Physics>Mechanics>Circular Motion>Centrifugal Force

What is the centripetal force acting on a

20 kg

body which is rotating along a circular track of radius

5 m

with a velocity of

10 m / s

EASY

Physics>Mechanics>Circular Motion>Centrifugal Force

Which of the following is true regarding angular velocity in a circle?

EASY

Physics>Mechanics>Circular Motion>Centrifugal Force

A man walking with a constant speed in a circular railway track has _____ constant.

At what portion of the Earth, the magnitude of Centrifugal force is felt minimum?

Important Questions on Circular Motion

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