A rod of mass m and length l is kept on ...

A rod of mass m and length l is kept on a surface that has no friction. If a ball comes & hits the lower end with a velocity v, then the velocity of centre of mass will be

zero

along negative x-axis

along positive x-axis

cannot determined with the given data

Text Solution

Verified by Experts

The correct Answer is:

On rod a impulse is acting towards -ve x direction so momentum is generated in -ve x direction (impulse act by the ball)

Topper's Solved these Questions

PART TEST 6
RESONANCE|Exercise Exercise|30 Videos
SEMICONDUCTORS
RESONANCE|Exercise Exercise|29 Videos

Similar Questions

Explore conceptually related problems

A rod of mass m and length l hinged at the centre is placed on a horizontal surface. A bullet of mass m moving with velocity v strikes the end. A of the rod and gets embedded in it. The angular velocity with which the systems rotates about its centre of mass after the bullet strikes the rod

A uniform thin rod of mass m and length l is standing on a smooth horizontal surface. A slight disturbance causes the lower end to slip on the smooth surface and the rod starts falling. Find the velocity of centre of mass of the rod at the instant when it makes an angle theta with horizontal.

A uniform thin rod of mass m and length l is standing on a smooth horizontal suface. A slight disturbance causes the lower end to slip on the smooth surface and the rod starts falling. Find the velocity of centre of mass of the rod at the instant when it makes an angle theta with horizontal.

A rod of mass M and length L is kept on a frictionless horizontal floor. A particle of mass m moving perpendicular to the rod with a speed v strikes at the end of the rod and sticks there. Calculate angular velocity acquired by the combined system.

A rod of mass m and length L is kept on a frictionless horizontal floor. A particle of same mass m moving perpendicular to the rod with a speed v strikes at the end of the rod. If coefficient of elasticity for the collision is 1 then calculate angular velocity acquired by the rod.

A uniform rod of mass m and length l is struck at an end by a force F perpendicular to the rod for a short time interval t. Calculate the speed of the centre of mass,

A uniform rod of length l is spinning with an angular velocity omega=2v/l while its centre of mass moves with a velocity v . Find the velocity of the end of the rod.

A thin uniform rod of mass m and length l is kept on a smooth horizontal surface such that it can move freely. At what distance from centre of rod should a particle of mass m strike on the rod such that the point P at a distance l/3 from the end of the rod is instantaneously at rest just after the elastic collision?

RESONANCE-RIGID BODY DYNAMICS-Exercise

A rod can rotate in a horizontal plane about its one end. A bead which...
Text Solution
|
In the pulley system shown, if radii of the bigger and smaller pulley ...
Text Solution
|
A rod of mass m and length l is kept on a surface that has no friction...
Text Solution
|
If vec(tau)xxvec(L)=0 for a rigid body, where vec(tau)= resultant torq...
Text Solution
|
A smooth tube of certain mass is rotated in a gravity-free Space and r...
Text Solution
|
A smooth sphere A is moving on a frictionless horizontal plane with an...
Text Solution
|
A body of mass m and radius r is rotated with angular velocity omega a...
Text Solution
|
A uniform circular disc of radius r is placed on a rough horizontal su...
Text Solution
|
In the figure shown, a ball without sliding on a horizontal, surface. ...
Text Solution
|
As shown in the figure, a disc of mass m is rolling without slipping w...
Text Solution
|
When a sphere rolls without slipping the ratio of its kinetic energy o...
Text Solution
|
A soldi sphere a hollow sphere and a disc, all haing same mass and rad...
Text Solution
|
In the previous question the smallest kinetic energy at the bottom of ...
Text Solution
|
A box of dimensions l and b is kept on a truck moving with an accelera...
Text Solution
|
A rectangular block has a square base measuring axxa and its height is...
Text Solution
|
A weightless rod is acted on by upward parallel forces of 2 N and 4N e...
Text Solution
|
A circular disc X of radius R is made from an iron of thickness t, and...
Text Solution
|
A solid sphere is rotating in free space. If the radius of the sphere ...
Text Solution
|
A 'T' shaped object with dimensions shown in the figure, is lying on a...
Text Solution
|
Angular momentum of the particle rotating with a central force is cons...
Text Solution
|