A circular disc is rotating about its ow...

A circular disc is rotating about its own axis at a uniform angular velocity `.omega.`. The disc is subjected to uniform angular retardation by which its angular velocity is decreased to `(omega)/(2)` during 120 rotations. The number of rotations further made by it before coming to rest is

120

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

SYSTEM OF PARTICLES AND ROTATIONAL MOTION
AAKASH SERIES|Exercise EXERCISE-I (Centre of Mass)|40 Videos
SYSTEM OF PARTICLES AND ROTATIONAL MOTION
AAKASH SERIES|Exercise EXERCISE-I (Rotational Motion :)|75 Videos
SYSTEM OF PARTICLES AND ROTATIONAL MOTION
AAKASH SERIES|Exercise EXERCISE - 2|106 Videos
SURFACE TENSION
AAKASH SERIES|Exercise ADDITIONAL PRACTICE EXERCISE (PRACTICE SHEET (ADVANCED) INTEGER TYPE QUESTIONS )|8 Videos
THERMAL PROPERTIES OF MATTER
AAKASH SERIES|Exercise ADDITIONAL PRACTICE EXERCISE (LEVEL - II) PRACTICE SHEET (ADVANCED) Integer/Subjective Type Questions|2 Videos

Similar Questions

Explore conceptually related problems

A circular disc is rotating about its own axis at uniform angular velocity omega . The disc is subjected to uniform angular retardation by which its angular velocity is decreased to omega//2 during 120 rotations., The number of rotations further made by it before coming to rest is

A ceiling fan is rotating about its own axis with uniform angular velocity omega . The electric current is switched off then due to constant opposing torque its angular velocity is reduced to 2omega//3 as it completes 30 rotations. The number of rotations further it makes before coming to rest is

A circular disc is rotating about its own axis at an angular velocity omega . If P is exact midpoint of dise between axis and rim of disc then angular velocity of Pis

A fly wheel is rotating about its own axis at an angular velocity 11 rads^(-1) , its angular velocity in revolution per minute is

When a disc rotates with uniform angular velocity, which of the following is not true ?

A stationary wheel starts rotating about its own axis at uniform angular acceleration 8 rad//s^(2) . The time taken by it complete 77 rotation is

AAKASH SERIES-SYSTEM OF PARTICLES AND ROTATIONAL MOTION-EXERCISE - 3

A disc rotates freely with rotational kinetic energy E about a normal ...
Text Solution
|
A binary star consists of two stars A (mass 2.2M(s)), and B of mass (1...
Text Solution
|
A circular disc is rotating about its own axis at a uniform angular ve...
Text Solution
|
A constant power is supplied to a rotating disc. The relationship of a...
Text Solution
|
Reel of thread in the form of solid cylinder is allowed to unroll by h...
Text Solution
|
A particle of mass 2 kg is on a smooth horizontal table and moves in a...
Text Solution
|
A uniform rod of length 1 and mass m is suspended by two vertical inex...
Text Solution
|
A cubical block of side .L. rests on a rough horizontal surface with c...
Text Solution
|
A heavy wheel of radius 20 cm and weight 10 kg is to be dragged over a...
Text Solution
|
A bullet of mass 10 g and speed 500 m/s is fired into a door and gets ...
Text Solution
|
A rod of length 1 is held vertically stationary with its lower end loc...
Text Solution
|
A string is wrapped around a wheel of radius r. The axis of the wheel ...
Text Solution
|
An equilateral prism of mass m rests on a rough horizontal surface wit...
Text Solution
|
A solid cylinder of mass M and radius R is resting on a horizontal pla...
Text Solution
|
A uniform rod of length L and mass M is pivoted freely at one end (at ...
Text Solution
|
To maintain a rotor at a uniform angular speed of 200 rad s^(-1), an e...
Text Solution
|
A disc is at rest at the top of a rough incined plane. It rolls withou...
Text Solution
|
A cylinder of mass 10 kg and radius 15 cm is rolling perfectly on a pl...
Text Solution
|
A uniform solid sphere of mass 0.5 kg rolls on a horizontal surface wi...
Text Solution
|
A sphere rolls without slipping on an incline of inclination theta. Th...
Text Solution
|