A 0.108kg Frisbee is 0.12 meter in radius and has about half its mass spread uniformly in a disk, while the other half is concentrated in the rim of the Frisbee. With a quarter-tum flish of the wrist, a student starts the frisbee rotating at 550 revolutions per minute. What is the moment of...

http://www.smartphysics.com/images/content/mechanics/ch18/ladder2.png A ladder of length L = 2.7 m and mass m = 24 kg rests on a floor with coefficient of static friction μs = 0.52. Assume the wall is frictionless. A person with mass M = 61 kg now stands at the very top of the ladder. 1....

How do I find the centre of rotationof a polygon rotated about a centre other than the origin.

What makes the earth spin?

Do all galaxies rotate, and if so, is it in the same direction