Alpha Question Bank for Medical: Physics>Chapter 7 - Circular Motion>Exercise-1>Q 18

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If the equation for the displacement of a particle moving on a circular path is given by $θ = 2 t^{3} + 0.5$ Where $θ$ is in radian and $t$ in second, then the angular velocity of the particle at $t = 2 s$ is :-

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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 19

For a particle in a non-uniform circular motion, identify the correct statement.

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Alpha Question Bank for Medical: Physics>Chapter 7 - Circular Motion>Exercise-1>Q 20

Two particles

P

and

Q

are located at distances

r_{P}

and

r_{Q}

, respectively, from the axis of a rotating disc such that

r_{P} > r_{Q}

. Then

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Alpha Question Bank for Medical: Physics>Chapter 7 - Circular Motion>Exercise-1>Q 21

Let

a_{r}

and

a_{t}

represent radial and tangential acceleration. The motion of a particle may be circular if

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Alpha Question Bank for Medical: Physics>Chapter 7 - Circular Motion>Exercise-1>Q 22

A stone tied to one end of string

80 cm

long is whirled in a horizontal circle with a constant speed. If stone makes

25

revolutions in

14 \sec

the magnitude of the acceleration of stone is:

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Alpha Question Bank for Medical: Physics>Chapter 7 - Circular Motion>Exercise-1>Q 23

A body is moving in a circular path with acceleration

a

. If its velocity gets doubled, find the ratio of acceleration after and before the change?

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Alpha Question Bank for Medical: Physics>Chapter 7 - Circular Motion>Exercise-1>Q 24

A spaceman in training is rotated in a seat at the end of a horizontal arm of length

5 m

. If he can withstand acceleration up to

9 g

, then what is the maximum number of permissible revolutions per second? (Take,

g = 10 m s^{- 2}

.)

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Alpha Question Bank for Medical: Physics>Chapter 7 - Circular Motion>Exercise-1>Q 25

A particle of mass

m

is moving in a uniform circular motion. The momentum of the particle is

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Alpha Question Bank for Medical: Physics>Chapter 7 - Circular Motion>Exercise-1>Q 26

A particle is going in a uniform helical and spiral path separately as shown in figure with constant speed.

a Question Image

b Question Image