Physics Crash Course MHT-CET>Chapter 3 - Circular Motion>Exercise 1>Q 5

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The tangential velocity of a particle making $p$ rotations along a circle of radius $π$ in $t$ seconds is

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Important Questions on Circular Motion

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Physics Crash Course MHT-CET>Chapter 3 - Circular Motion>Exercise 1>Q 6

A bullet is moving horizontally with certain velocity. It pierces two paper discs rotating coaxially with angular speed

ω

separated by a distance

l

. If the hole made by bullet on second disc is shifted by an angle

θ

with respect to the first, find velocity of bullet.

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Physics Crash Course MHT-CET>Chapter 3 - Circular Motion>Exercise 1>Q 8

A flywheel -at rest is to reach an angular velocity of

24 rad s^{- 1}

in

8 s

with constant angular acceleration. The total angle turned through during this interval is

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Physics Crash Course MHT-CET>Chapter 3 - Circular Motion>Exercise 1>Q 9

A wheel has an angular acceleration of

3.0 rad s^{- 2}

and an initial angular speed of

2.00 rad s^{- 1} .

In a time of

2 s,

it has rotated through an angle (in radian) of

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Physics Crash Course MHT-CET>Chapter 3 - Circular Motion>Exercise 1>Q 10

Two racing cars of masses

m_{1}

and

m_{2}

are moving in circles of radii

r

and

2 r

respectively and their angular speeds are equal. The ratio of the time taken by cars to complete one revolution is:

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Physics Crash Course MHT-CET>Chapter 3 - Circular Motion>Exercise 1>Q 11

The ratio of angular speed of a second-hand to the hour-hand of a watch is,

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Physics Crash Course MHT-CET>Chapter 3 - Circular Motion>Exercise 1>Q 12

A train is moving towards north. At one place it turns towards north-east. Here, we observe that:

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Physics Crash Course MHT-CET>Chapter 3 - Circular Motion>Exercise 1>Q 13

A particle is moving in uniform circular motion with speed

v

and radius

R

. The angular acceleration of the particle is:

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Physics Crash Course MHT-CET>Chapter 3 - Circular Motion>Exercise 1>Q 14

Two racing cars of masses

m_{1}

and

m_{2}

are moving in circles of radii

r_{1}

and

r_{2}

respectively. Their speeds are such that each of them makes a complete circle at the same time

t

. The ratio of the angular speed of the first to the second car is