A disc of radius 2 m and mass 100kg roll...

A disc of radius 2 m and mass 100kg rolls on a horizontal floor, its centre of mass has speed of `20 cm//s`. How much work is needed to stop it ?

30kJ

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

SYSTEM OF PARTICLES AND ROTATIONAL MOTION
VMC MODULES ENGLISH|Exercise EFFICIENT|50 Videos
SYSTEM OF A PARTICLES & ROTATIONAL MOTION
VMC MODULES ENGLISH|Exercise IN-CHAPTER EXERCISE F|10 Videos
UNITS, MEASUREMENTS & ERRORS
VMC MODULES ENGLISH|Exercise IN - CHAPTER EXERCISE - B|10 Videos

Similar Questions

Explore conceptually related problems

A hoop of radius 2 m weight 100 kg .It rolls along a horizontal floor so that its centre of mass has a speed of 20 cm s^-1 . How much work has to be done to stop it ?

The mass of a hoop of radius 0.30 m is 2kg. It rolls along a horizontal floor so that its centre of mass has a speed of 2 m/s. What is the work done to stop it ?

A disc of radius R and mass m is projected on to a horizontal floor with a backward spin such that its centre of mass speed is v_(0) and angular velocity is omega_(0) . What must be the minimum value of omega_(0) so that the disc eventually returns back?

A uniform hollow sphere of mass 400 g rolls without slipping on a plane horizontal surface with its centre moving at a speed of 10 cm/s. Its kinetic energy is:

A uniform hollow sphere of mass 200 g rolls without slipping on a plane horizontal surface with its centre moving at a speed of 5.00 cm/s. Its kinetic energy is:

A uniform hollow sphere of mass 400 g rolls without slipping on a plane horizontal surface with its centre moving at a speed of 10 cm/s. Its kinetic energy is:

A disc of radius r rolls without slipping on a rough horizontal floor. If veloocity of its centre of mass is v_(0) , then velocity of point P, as shown in the figure (OP=r // 2 and angleQOP=60^(@) )is

A disc of mass 4 kg and of radius 1 m rolls on a horizontal surface without slipping such that the velocity of its centre of mass is 10" cm sec"^(-1) , Its rotatonal kinetic energy is

VMC MODULES ENGLISH-SYSTEM OF PARTICLES AND ROTATIONAL MOTION-IMPECCABLE

A solid cylinder of mass 3 kg is rolling on a horizontal surface with ...
Text Solution
|
The moment of inertia of a uniform circular disc is maximum about an a...
Text Solution
|
A circular platform is mounted on a frictionless vertical axle. Its ra...
Text Solution
|
Three identical spherical shells, each of mass m radius r are placed a...
Text Solution
|
A mass m moves in a circles on a smooth horizontal plane with velocity...
Text Solution
|
A rod of weight w is supported by two parallel knife edges A and B and...
Text Solution
|
An automobile moves on a road with a speed of 54 kmh^(-1). The radius ...
Text Solution
|
A Force F=alphahat(i)+3hat(j)+6hat(k) is acting at a point r=2hat(i)-6...
Text Solution
|
From a disc of radius R and mass M, a circular hole of diameter R, who...
Text Solution
|
A disc and a sphere of same radius but different masses roll off on tw...
Text Solution
|
A solid sphere of mass m and radius R is rotating about its diameter. ...
Text Solution
|
A light rod of length l has two masses m(1) and m(2) attached to its t...
Text Solution
|
A rope is wound around a hollow cylinder of mass 3 kg and radius 40 cm...
Text Solution
|
Two discs of same moment of inertia rotating about their regular axis ...
Text Solution
|
A solid sphere is in roling motion. In rolling motion,a body possesses...
Text Solution
|
A solid spere is rotating freely about its symmetry axis in free space...
Text Solution
|
The moment of the force ,F = 4hati+5hatj-6hatK at (2,0-3) about the po...
Text Solution
|
Three objects,A:(a solid sphere), B: (a thin circular disk)and C: (a c...
Text Solution
|
A solid cylinder of mass 2 kg and radius 4 cm rotating about its axis ...
Text Solution
|
A disc of radius 2 m and mass 100kg rolls on a horizontal floor, its c...
Text Solution
|