Physics-
General
Easy
Question
A disc of mass M and radius R is rolling with angular speed 
on a horizontal plane as shown. The magnitude of angular momentum of the disc about the origin O is :-
- 2
The correct answer is:
Related Questions to study
physics-
A cubical block of side 'a' moving with velocity v on a horizontal smooth plane as shown. It hits a ridge at point O. The angular speed of the block after it hits O is :-
A cubical block of side 'a' moving with velocity v on a horizontal smooth plane as shown. It hits a ridge at point O. The angular speed of the block after it hits O is :-
physics-General
physics-
Let I be the moment of inertia of a uniform square plate about an axis AB that passes through its centre and is parallel to two of its sides. CD is a line in the plane of the plate that passes through the centre of the plate and makes an angle 
with AB. The moment of inertia of the plate about the axis CD is then equal to:-
Let I be the moment of inertia of a uniform square plate about an axis AB that passes through its centre and is parallel to two of its sides. CD is a line in the plane of the plate that passes through the centre of the plate and makes an angle with AB. The moment of inertia of the plate about the axis CD is then equal to:-
physics-General
physics-
A particle of mass 'm' is projected with a velocity v making an angle of 
with the horizontal. The magnitude of angular momentum of the projectile about the point of projection when the particle is at its maximum height 'h' is :-
A particle of mass 'm' is projected with a velocity v making an angle of with the horizontal. The magnitude of angular momentum of the projectile about the point of projection when the particle is at its maximum height 'h' is :-
physics-General
physics-
A small particle of mass m is projected at an angle with the x-axis with an initial velocity v0 in the x-y plane as shown in the figure. At a time 
the angular momentum of the particle is:
A small particle of mass m is projected at an angle with the x-axis with an initial velocity v0 in the x-y plane as shown in the figure. At a time the angular momentum of the particle is:
physics-General
physics-
For the given uniform square lamina ABCD, whose centre is O :
For the given uniform square lamina ABCD, whose centre is O :
physics-General
physics-
A force of 
acts on O, the origin of the co-ordinate system. The torque about the point (1, –1) is :
A force of acts on O, the origin of the co-ordinate system. The torque about the point (1, –1) is :
physics-General
physics-
A particle of mass m moves along line PC with velocity v as shown. What is the angular momentum of the particle about O ?
A particle of mass m moves along line PC with velocity v as shown. What is the angular momentum of the particle about O ?
physics-General
physics-
A ring of mass M and radius R sliding with a velocity 
suddenly enters into rough surface where the coefficient of friction is 
, as shown in figure. Choose the correct alternative(s)
A ring of mass M and radius R sliding with a velocity suddenly enters into rough surface where the coefficient of friction is , as shown in figure. Choose the correct alternative(s)
physics-General
chemistry-
The vapour pressure of a pure liquid 'A' is 0.80 atm. When a non-volatile solute ' B' is dissolved in 'A', it vapour pressure becomes 0.60 atm. The mole fraction of 'B' in the solution -
The vapour pressure of a pure liquid 'A' is 0.80 atm. When a non-volatile solute ' B' is dissolved in 'A', it vapour pressure becomes 0.60 atm. The mole fraction of 'B' in the solution -
chemistry-General
physics-
A ring of mass M and radius R sliding with a velocity suddenly enters into rough surface where the coefficient of friction is , as shown in figure. Choose the correct statement(s) :–
A ring of mass M and radius R sliding with a velocity suddenly enters into rough surface where the coefficient of friction is , as shown in figure. Choose the correct statement(s) :–
physics-General
physics-
A ring of mass M and radius R sliding with a velocity suddenly enters into rough surface where the coefficient of friction is , as shown in figure. Choose the correct statement(s)
A ring of mass M and radius R sliding with a velocity suddenly enters into rough surface where the coefficient of friction is , as shown in figure. Choose the correct statement(s)
physics-General
physics-
A ring of mass M and radius R sliding with a velocity suddenly enters into rough surface where the coefficient of friction is , as shown in figure. Choose the correct statement(s)
A ring of mass M and radius R sliding with a velocity suddenly enters into rough surface where the coefficient of friction is , as shown in figure. Choose the correct statement(s)
physics-General
physics-
In the figure shown a plank of mass m is lying at rest on a smooth horizontal surface. A disc of same mass m and radius r is rotated to an angular speed 
and then gently placed on the plank. If we consider the plank and the disc as a system then frictional force between them is an internal force. Momentum of the system changes due to external force only. It is found that finally slipping cease, and 50% of total kinetic energy of the system is lost. Assume that plank is long enough. is coefficient of friction between disc and plank. Distance moved by the plank from the placing of disc on the plank till the slipping ceases between disc and plank
In the figure shown a plank of mass m is lying at rest on a smooth horizontal surface. A disc of same mass m and radius r is rotated to an angular speed and then gently placed on the plank. If we consider the plank and the disc as a system then frictional force between them is an internal force. Momentum of the system changes due to external force only. It is found that finally slipping cease, and 50% of total kinetic energy of the system is lost. Assume that plank is long enough. is coefficient of friction between disc and plank. Distance moved by the plank from the placing of disc on the plank till the slipping ceases between disc and plank
physics-General
physics-
In the figure shown a plank of mass m is lying at rest on a smooth horizontal surface. A disc of same mass m and radius r is rotated to an angular speed and then gently placed on the plank. If we consider the plank and the disc as a system then frictional force between them is an internal force. Momentum of the system changes due to external force only. It is found that finally slipping cease, and 50% of total kinetic energy of the system is lost. Assume that plank is long enough. is coefficient of friction between disc and plank. Magnitude of the change in angular momentum of disc about centre of mass of disc
In the figure shown a plank of mass m is lying at rest on a smooth horizontal surface. A disc of same mass m and radius r is rotated to an angular speed and then gently placed on the plank. If we consider the plank and the disc as a system then frictional force between them is an internal force. Momentum of the system changes due to external force only. It is found that finally slipping cease, and 50% of total kinetic energy of the system is lost. Assume that plank is long enough. is coefficient of friction between disc and plank. Magnitude of the change in angular momentum of disc about centre of mass of disc
physics-General
physics-
In the figure shown a plank of mass m is lying at rest on a smooth horizontal surface. A disc of same mass m and radius r is rotated to an angular speed and then gently placed on the plank. If we consider the plank and the disc as a system then frictional force between them is an internal force. Momentum of the system changes due to external force only. It is found that finally slipping cease, and 50% of total kinetic energy of the system is lost. Assume that plank is long enough. is coefficient of friction between disc and plank. Time when slipping ceases
In the figure shown a plank of mass m is lying at rest on a smooth horizontal surface. A disc of same mass m and radius r is rotated to an angular speed and then gently placed on the plank. If we consider the plank and the disc as a system then frictional force between them is an internal force. Momentum of the system changes due to external force only. It is found that finally slipping cease, and 50% of total kinetic energy of the system is lost. Assume that plank is long enough. is coefficient of friction between disc and plank. Time when slipping ceases
physics-General
