- #1

MozAngeles

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## Homework Statement

The rotor (flywheel) of a toy gyroscope has mass 0.150 kg. Its moment of inertia about its axis is 1.20*10^- 4 kg m^2. The mass of the frame is 2.70×10−2 kg. The gyroscope is supported on a single pivot with its center of mass a horizontal distance of 4.00 cm from the pivot. The gyroscope is precessing in a horizontal plane at the rate of one revolution in 2.40 s.

Find the angular speed with which the rotor is spinning about its axis, expressed in rev/min.

## Homework Equations

[tex]\omega[/tex]=(weight force*radius)/(moment of interia*[tex]\Omega[/tex])

## The Attempt at a Solution

[tex]\omega[/tex]= (1.73*.04)/(1.20*10^-4 *4.8)= 38 rad/s

the result is wrong. i have no idea what i am doing wrong.

any help would be nice thanks =)