Monday
April 21, 2014

Homework Help: Physics

Posted by Udit on Thursday, November 8, 2012 at 9:40pm.

A rotating uniform-density disk of radius 0.7 m is mounted in the vertical plane. The axle is held up by supports that are not shown, and the disk is free to rotate on the nearly frictionless axle. The disk has mass 5 kg. A lump of clay with mass 0.3 kg falls and sticks to the outer edge of the wheel at location A, < -0.455, 0.532, 0 > m. (Let the origin of the coordinate system be the center of the disk.) Just before the impact the clay has a speed 7 m/s, and the disk is rotating clockwise with angular speed 0.23 radians/s.
(a) Just before the impact, what is the angular momentum of the combined system of wheel plus clay about the center C? (As usual, x is to the right, y is up, and z is out of the screen, toward you.)
b. final angular momentum
c. Just after the impact, what is the angular velocity of the wheel?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

physics - A children's merry-go-round in a park consists of a uniform 200kg disk...
Physics - three rotating, uniform disks that are coupled by belts. One belt runs...
physics - A 1.6 kg disk with radius 0.63 m is rotating freely at 55 rad/s ...
physics - A uniform disk with a mass of 800 g and radius 17.0 cm is rotating on ...
Physics - A large disk of mass M and radius R is spinning like a CD of merry-go-...
physics - A circular disk of mass 0.2 kg and radius 24 cm, initially not ...
physics - How much tangential force must be exerted to stop a rotating solid ...
physics - A circular disk of mass 0.2 kg and radius 24 cm, initially not ...
physics14 - A uniform disk with a mass of 900 g and radius 17.0 cm is rotating ...
Physics - A circular disk of mass 0.3 kg and radius 40 cm, initially not ...

Search
Members