Homework Help: physics

Posted by Ama on Sunday, December 5, 2010 at 4:01pm.

A wheel is roatating freely at an angular speed of 800 rev/min on a shaft of negligible moment of inertia. A second wheel initially at rest and with twice the moment of inertia of the first, is suddenly coupled to the same shaft. (a) what is the angular speed of the resultant combination of the shaft and two wheels? (b) What fraction of the original rotational kinetic energy is lost? Treat the wheels as hoops in your analysis

physics - drwls, Sunday, December 5, 2010 at 5:11pm
Apply the law of conservation of angular momentum. Show work for further assistance.

Answer this Question

Related Questions

physics - A wheel is roatating freely at an angular speed of 800 rev/min on a ...
Physics - A cord is wrapped around the rim of a wheel .250 m in radius, and a ...
Physics - A steel bicycle wheel (without the rubber tire) is rotating freely ...
Physics/Chemistry - A steel bicycle wheel (without the rubber tire) is rotating...
Physics - A flywheel with a diameter of 2.45 m is rotating at an angular speed ...
physics - A large wooden wheel of radius R and the moment of inertia I is ...
physics - A potter's wheel having a radius 0.45 m and a moment of inertia of...
Physics Mehanics - In the figure below, wheel A of radius rA = 11 cm is coupled ...
Dynamics - A pelton wheel attains its operating speed of 800 rev/min% determine ...
Dynamics - A pelton wheel attains its operating speed of 800 rev/min within 2s ...

For Further Reading

First Name:
School Subject:
Answer: