A body of mass 10 kg is rotating on a ci...

A body of mass 10 kg is rotating on a circular path of radius 1 m with time period 3.14S. Calculate its angular momentum and rotational kinetic energy.

Text Solution

Verified by Experts

Angular momentum = 20 `kgm^2s^(-1)`
KE = 20J

Topper's Solved these Questions

SYSTEM OF PARTICLES AND ROTATIONAL MOTION
BINA LIBRARY|Exercise EXERCISE|61 Videos
PROPERTIES OF SOLID
BINA LIBRARY|Exercise EXERCISE|65 Videos
THERMAL PROPERTIES OF MATTER
BINA LIBRARY|Exercise EXERCISE|119 Videos

Similar Questions

Explore conceptually related problems

A body moving in a circular path of radius 14 m completes one round in 10 seconds. Find its circular velocity.

A 40 kg flywheel in from of a circular disc of =1 m radius is making 120revolutions per minute. Calculate its angular momentum. [ I = 1/2m times r^2 ]

If a body is moving in a circle of radius r with a constant speed v m/s. Its angular velocity is

A partiale of mass m is moving in a circular path of radius r such that its centripetal acceleration is varying with time t as a_c = k^2rt^2, where k is constant. The power delivered to the particle by the forces acting on it is

A disc of mass 5 kg radius 0.5 m rolls on the ground at the rate of 10 ms^(-1) . Calculate its KE.

An electron of energy 150ev describe a circular path in a magnetic field of 1 T. Calculate the radius of circle.

A solid cylinder of mass 20 kg rotates about its axis with angular speed 100 rad s-^1. The radius of the cylinder is 0.25 m. What is the kinetic energy associated with the rotation of the cylinder? What is the magnitude of angular momentum of the cylinder about its axis?

If two bodies have circular path of radius rt and r2 and the time taken are the same, find the ratio of the -angular speed.

A mass is moving in a circular path with constant speed. What is the work done in 3/4 of a rotation?

An object of mass 40 kg is raised to a height of 5 m above the ground. What is its potential energy? If the object is allowed to fall, find its kinetic energy when it is half way down.

BINA LIBRARY-SYSTEM OF PARTICLES AND ROTATIONAL MOTION-EXERCISE

A body of mass 10 kg is rotating on a circular path of radius 1 m with...
Text Solution
|
Define torque. State its dimensions.
Text Solution
|
What is the role of MI in rotational motion?
Text Solution
|
What is radius of gyration? It is a constant quantity?
Text Solution
|
What do you mean by angular momentum.
Text Solution
|
What is KE of rotation of rigid body ?
Text Solution
|
Express torque in terms of moment of inertia.
Text Solution
|
Express angular momentum of a system of particles in term of M.I.
Text Solution
|
Name the physical quantity which has the same meaning as momentum.
Text Solution
|
Name the physical quantity which has the same meaning as rate of chang...
Text Solution
|
Establish the principle of conservation of angular momentum.
Text Solution
|
Show that the rate of change of angular momentum is proportional to th...
Text Solution
|
Find an expression for the total kinetic energy of a rolling body.
Text Solution
|
Find the ratio of total kinetic energy to the rotational kinetic energ...
Text Solution
|
State and prove theorem of parallel axes.
Text Solution
|
State and prove theorem of perpendicular axes.
Text Solution
|
Find an expression for MI of a thin circular RING about an axis passin...
Text Solution
|
Obtain an expression for MI of a circular disc about a diameter of the...
Text Solution
|
Derive an expression for MI of a solid cylinder about its axis.
Text Solution
|
What do you mean by the moment of Inertia of a body?
Text Solution
|
Establish a relation between the torque and moment of inertia of a rig...
Text Solution
|