JEE Mains Physics 2002-2019 Solved Video Solutions
Distance of the centre of mass of a solid uniform cone from its vertex is z0 If the radius of its base is R and its height is h, then z0 is equal to
29
Nov
Distance of the centre of mass of a solid uniform cone from its vertex is z0 If the radius of its base is R and its height is h, then z0 is equal to Distance of the centre of mass of a solid uniform cone from its vertex is z0 If the radius of its [...]
A roller is made by joining together two corners at their vertices O, it is kept on two rails AB and CD, which are placed a symmetrically with its axis perpendicular to CD and its center O at the centre of line joining AB and Cd it is given a light push so that it starts rolling with its centre O moving parallel to CD in the direction shown As it moves, the roller will tend to:
29
Nov
A roller is made by joining together two corners at their vertices O, it is kept on two rails AB and CD, which are placed a symmetrically with its axis perpendicular to CD and its center O at the centre of line joining AB and Cd it is given a light push so that it [...]
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A roller is made by joining together two corners at their vertices O ,
each of mass M and radius R are welded symmetrically as shown. The moment of inertia of the arrangement about the axis normal to the plane and passing through the point P is? ,
it is kept on two rails AB and CD ,
Seven identical circular planar disks ,
The moment of inertia of a uniform cylinder of length l and radius R about its perpendicular bisector is I. What is the ratio l/R such that the moment of inertia is minimum ?
29
Nov
The moment of inertia of a uniform cylinder of length l and radius R about its perpendicular bisector is I. What is the ratio l/R such that the moment of inertia is minimum ? The moment of inertia of a uniform cylinder of length l and radius R about its perpendicular bisector is I. What [...]
A particle is moving with a uniform speed in a circular orbit of radius R in a central force inversely proportional to the nth power of R. If the period of rotation of the particle is T, then
29
Nov
A particle is moving with a uniform speed in a circular orbit of radius R in a central force inversely proportional to the nth power of R. If the period of rotation of the particle is T, then A particle is moving with a uniform speed in a circular orbit of radius R in a [...]
From a uniform circular disc of radius R and mass 9 M, a small disc of radius R/3 is removed as shown in the figure. The moment of inertia of the remaining disc about an axis perpendicular to the plane of the disc and passing through centre of disc is –
29
Nov
From a uniform circular disc of radius R and mass 9 M, a small disc of radius R/3 is removed as shown in the figure. The moment of inertia of the remaining disc about an axis perpendicular to the plane of the disc and passing through centre of disc is – a small disc of [...]
Seven identical circular planar disks, each of mass M and radius R are welded symmetrically as shown. The moment of inertia of the arrangement about the axis normal to the plane and passing through the point P is?
29
Nov
Seven identical circular planar disks, each of mass M and radius R are welded symmetrically as shown. The moment of inertia of the arrangement about the axis normal to the plane and passing through the point P is? each of mass M and radius R are welded symmetrically as shown. The moment of inertia of [...]
Two particles A,B are moving on two concentric circles of radii R1) and R2 with equal angular speed ω. At t=0,their positions and direction of motion are shown in the figure :
29
Nov
Two particles A,B are moving on two concentric circles of radii R1) and R2 with equal angular speed ω. At t=0,their positions and direction of motion are shown in the figure : B are moving on two concentric circles of radii R1) and R2 with equal angular speed ω. At t=0 their positions and direction [...]
A particle of mass 20g is released with an initial velocity 5m/s along the curve from the point A, as shown in the figure. The point A is at height h from point B. The particle slides along the frictionless surface. When the particle reaches point B, its angular momentum about O will be : (Take g=10m/s^2).
29
Nov
A particle of mass 20g is released with an initial velocity 5m/s along the curve from the point A, as shown in the figure. The point A is at height h from point B. The particle slides along the frictionless surface. When the particle reaches point B, its angular momentum about O will be : [...]
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A particle of mass 20g is released with an initial velocity 5m/s along the curve from the point A ,
as shown in the figure. The point A is at height h from point B. The particle slides along the frictionless surface. When the particle reaches point B ,
its angular momentum about O will be : (Take g=10m/s^2). ,
The moment of inertia of a solid sphere, about an axis parallel to its diameter and at a distance of x from it, is I(x)’. Which one of the graphs represents the variation of I(x) with x correctly?
29
Nov
The moment of inertia of a solid sphere, about an axis parallel to its diameter and at a distance of x from it, is I(x)’. Which one of the graphs represents the variation of I(x) with x correctly? about an axis parallel to its diameter and at a distance of x from it is I(x)'. [...]
The position vector of the centre of mass r cm of an symmetric uniform bar of negligible area of cross-section as shown in figure is :
29
Nov
The position vector of the centre of mass r cm of an symmetric uniform bar of negligible area of cross-section as shown in figure is : The position vector of the centre of mass r cm of an symmetric uniform bar of negligible area of cross-section as shown in figure is : November 29, 2020 [...]