Physics-
General
Easy

Question

In the triangular sheet given PQ = QR = l. If M is the mass of the sheet. What is the moment of inertial about PR

  1. fraction numerator M l to the power of 2 end exponent over denominator 24 end fraction    
  2. fraction numerator M l to the power of 2 end exponent over denominator 12 end fraction    
  3. fraction numerator M l to the power of 2 end exponent over denominator 6 end fraction    
  4. fraction numerator M l to the power of 2 end exponent over denominator 18 end fraction    

The correct answer is: fraction numerator M l to the power of 2 end exponent over denominator 12 end fraction

Related Questions to study

General
physics-

A homogeneous cubical brick lies motionless on a rough inclined surface. The half of the brick which applies greater pressure on the plane is

A homogeneous cubical brick lies motionless on a rough inclined surface. The half of the brick which applies greater pressure on the plane is

physics-General
General
physics-

A uniform cube of side ‘b’ and mass M rest on a rough horizontal table. A horizontal force F is applied normal to one of the face at a point, at a height 3b/4 above the base. What should be the coefficient of friction (mu) between cube and table so that is will tip about an edge before it starts slipping?

A uniform cube of side ‘b’ and mass M rest on a rough horizontal table. A horizontal force F is applied normal to one of the face at a point, at a height 3b/4 above the base. What should be the coefficient of friction (mu) between cube and table so that is will tip about an edge before it starts slipping?

physics-General
General
physics-

A uniform rod AB of length L and mass M is lying on a smooth table. A small particle of mass m strike the rod with a velocity v0 at point C a distance x from the centre O. The particle comes to rest after collision. The value of x, so that point A of the rod remains stationary just after collision, is:

A uniform rod AB of length L and mass M is lying on a smooth table. A small particle of mass m strike the rod with a velocity v0 at point C a distance x from the centre O. The particle comes to rest after collision. The value of x, so that point A of the rod remains stationary just after collision, is:

physics-General
parallel
General
physics-

A pulley is hinged at the centre and a massless thread is wrapped around it. The thread is pulled with a constant force F starting from rest. As the time increases,

A pulley is hinged at the centre and a massless thread is wrapped around it. The thread is pulled with a constant force F starting from rest. As the time increases,

physics-General
General
physics-

The moment of inertia of semicircular plate of radius R and mass M about axis AA’ in its plane passing through its centre is

The moment of inertia of semicircular plate of radius R and mass M about axis AA’ in its plane passing through its centre is

physics-General
General
physics-

In an experiment with a beam balance on unknown mass m is balanced by two known mass m is balanced by two known masses of 16 kg and 4 kg as shown in figure.

The value of the unknown mass m is

In an experiment with a beam balance on unknown mass m is balanced by two known mass m is balanced by two known masses of 16 kg and 4 kg as shown in figure.

The value of the unknown mass m is

physics-General
parallel
General
physics-

A sphere of mass M and radius R is attached by a light rod of length l to a point P. The sphere rolls without slipping on a circular track as shown. It is released from the horizontal position. the angular momentum of the system about P when the rod becomes vertical is

A sphere of mass M and radius R is attached by a light rod of length l to a point P. The sphere rolls without slipping on a circular track as shown. It is released from the horizontal position. the angular momentum of the system about P when the rod becomes vertical is

physics-General
General
physics-

A man is sitting in a smooth groove on a horizontal circular table at the edge by holding a rope joined to the centre. The moment of inertia of table is I. Mass of man = M. Man now pulls the rope so that he comes to the centre. The angular velocity of the table:

A man is sitting in a smooth groove on a horizontal circular table at the edge by holding a rope joined to the centre. The moment of inertia of table is I. Mass of man = M. Man now pulls the rope so that he comes to the centre. The angular velocity of the table:

physics-General
General
Physics-

If a person sitting on a rotating stool with his hands outstretched, suddenly lowers his hands, then his

If a person sitting on a rotating stool with his hands outstretched, suddenly lowers his hands, then his

Physics-General
parallel
General
physics-

A uniform solid disc is rolling on a horizontal surface. At a certain instant B is the point of contact and A is at height 2R from ground, where R is radius of disc.

A uniform solid disc is rolling on a horizontal surface. At a certain instant B is the point of contact and A is at height 2R from ground, where R is radius of disc.

physics-General
General
physics-

Let I1, I2 and I3 be the moment of inertia of a uniform square plate about axes AOC, xDx' and yBy' respectively as shown in the figure. The moments of inertia of the plate I1: I2: I are in the ratio.

Let I1, I2 and I3 be the moment of inertia of a uniform square plate about axes AOC, xDx' and yBy' respectively as shown in the figure. The moments of inertia of the plate I1: I2: I are in the ratio.

physics-General
General
physics-

A uniform sphere of radius R is placed on a rough horizontal surface and given a linear velocity v0 angular velocity w0 as shown. The sphere comes to rest after moving some distance to the right. It follows that:

A uniform sphere of radius R is placed on a rough horizontal surface and given a linear velocity v0 angular velocity w0 as shown. The sphere comes to rest after moving some distance to the right. It follows that:

physics-General
parallel
General
physics-

A right triangular plate ABC of mass m is free to rotate in the vertical plane about a fixed horizontal axis through A. It is supported by a string such that the side AB is horizontal. The reaction at the support A is:

A right triangular plate ABC of mass m is free to rotate in the vertical plane about a fixed horizontal axis through A. It is supported by a string such that the side AB is horizontal. The reaction at the support A is:

physics-General
General
Physics-

A particle of mass 2 kg located at the position left parenthesis stack i with hat on top plus stack j with hat on top right parenthesis m has a velocity 2 left parenthesis plus stack i with hat on top minus stack j with hat on top plus stack k with hat on top right parenthesis m divided by s Its angular momentum about z-axis in kg-m2/s is

A particle of mass 2 kg located at the position left parenthesis stack i with hat on top plus stack j with hat on top right parenthesis m has a velocity 2 left parenthesis plus stack i with hat on top minus stack j with hat on top plus stack k with hat on top right parenthesis m divided by s Its angular momentum about z-axis in kg-m2/s is

Physics-General
General
physics-

A ring of mass m and radius R has three particles attached to the ring as shown in the figure. The centre of the ring has a speed v0. The kinetic energy of the system is: (Slipping is absent)

A ring of mass m and radius R has three particles attached to the ring as shown in the figure. The centre of the ring has a speed v0. The kinetic energy of the system is: (Slipping is absent)

physics-General
parallel

card img

With Turito Academy.

card img

With Turito Foundation.

card img

Get an Expert Advice From Turito.

Turito Academy

card img

With Turito Academy.

Test Prep

card img

With Turito Foundation.