Home
Class 11
PHYSICS
A particle of mass m is placed at a dist...

A particle of mass `m` is placed at a distance `x` from the centre of ring along the line through the centre of the ring and perpendicular to its plane.

The force, when `x=0` :

A

`(GMm)/(x^(2))`

B

`(GMmx)/(sqrt(a^(2)+x^(2)))`

C

`(GMmx)/((a^(2)+x^(2))^(3//2))`

D

Zero

Text Solution

Verified by Experts

The correct Answer is:
d
Promotional Banner

Similar Questions

Explore conceptually related problems

A particle of mass m is placed at a distance x from the centre of ring along the line through the centre of the ring and perpendicular to its plane. if xlt lta , the particle of mass m will:

A particle of mass m is placed at a distance x from the centre of ring along the line through the centre of the ring and perpendicular to its plane. Gravitational potential energy of this system.

A particle of mass m is placed at a distance R from centre of a uniformly dense thin ring of mass m rand radius R on a axis passing through its centre and perpendicular to its plane. Find the speed of the particle when it reaches at the centre fo the ring due to their mutual gravitation force.

A semicircular lamina of mass m and radius 'r' and centre C . Its center of mass is at a distance 'x' from C . Its moment of inertia about an axis through its center of mass and perpendicular to its plane is:

(a) A tunnel is dug along a diameter of the earth. Find the force on the a particle of mass m placed in the tunnel at a distance x from the centre. (b) A tunnel is dug along a chord of the earth at a perpendicular distance R//2 from the earth's centre. the wall of the tunnel may be assumed to be frictionless. Find the force exerted by the wall on a particle of mass m when it is at a distance x from the centre of the tunnel.

From a complete ring of mass M and radius R , a 30^@ sector is removed. The moment of inertia of the incomplete ring about an axis passing through the centre of the ring and perpendicular to the plane of the ring is ,

A uniform ring of mass m and radius 3a is kept above a sphere of mass M and radius 3a at a distance of 4a (as shown in figure) such that line joining the centres of ring and sphere is perpendicular to the plane of the ring. Find the force of gravitational attraction between the ring and the sphere.

Mass M is distributed uniformly along a line of length 2L . A particle of mass m is at a point that is at a distance a above the centre of the line on the its perpendicular bisector (Point P in figure). The gravitational force that the line exert on the particle is

Calculate the moment of inertia of a ring having mass M , radius R and having uniform mass distribution about an axis passing through the centre of the ring and perpendicular to the plane of the ring?