Alpha Question Bank for Medical: Physics>Chapter 7 - Circular Motion>Exercise-1>Q 82

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A disc is moving without slipping on ground then the relation between magnitude of velocity of points $P$ , $C$ and $Q$ is [distance $C P = C Q$ ]

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Important Questions on Circular Motion

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Alpha Question Bank for Medical: Physics>Chapter 7 - Circular Motion>Exercise-1>Q 83

An annular ring with inner and outer radii

R_{1}

and

R_{2}

is rolling without slipping with a uniform angular speed. The ratio of the forces experienced by the two particles situated on the inner and outer parts of the ring,

\frac{F_{1}}{F_{2}}

is:

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Alpha Question Bank for Medical: Physics>Chapter 7 - Circular Motion>Exercise-1>Q 84

A runner completes one round of a circular path of radius

r

in

40

seconds. His displacement after

2

minutes

20

seconds will be

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Alpha Question Bank for Medical: Physics>Chapter 7 - Circular Motion>Exercise-2>Q 1

The kinetic energy

k

of a particle moving along a circle of radius

R

depends on the distance covered

s

as,

k = a s^{2}

, where

a

is a constant. The force acting on the particle is,

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Alpha Question Bank for Medical: Physics>Chapter 7 - Circular Motion>Exercise-2>Q 2

A particle of mass

m

is moving in a circular path of constant radius

r

such that its centripetal acceleration

a_{c}

is varying with time

t

as

a_{c} = k^{2} r t^{2}

, where

k

is a constant. The power delivered to the particle by the forces acting on it is

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Alpha Question Bank for Medical: Physics>Chapter 7 - Circular Motion>Exercise-2>Q 3

A particle moves along a circle of radius

(\frac{20}{π}) m

with constant tangential acceleration. If the speed of the particle is

80 m / s

at the end of the second revolution after motion has begun, the tangential. acceleration is:

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Alpha Question Bank for Medical: Physics>Chapter 7 - Circular Motion>Exercise-2>Q 4

Centrifugal force is an inertial force when considered by -

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Alpha Question Bank for Medical: Physics>Chapter 7 - Circular Motion>Exercise-2>Q 5

A rod of length

L

is pivoted at one end and is rotated with a uniform angular velocity, in a horizontal plane. Let

T_{1}

and

T_{2}

be the tensions at points

\frac{L}{4}

and

\frac{3 L}{4}

, away from the pivoted ends.

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Alpha Question Bank for Medical: Physics>Chapter 7 - Circular Motion>Exercise-2>Q 6

When a ceiling fan is switched off, its angular velocity reduces to

50 %

while it makes

36

rotations. How many more rotations will it make before coming to rest? (Assume uniform angular retardation)