Toy gyroscope physics problem

  • Thread starter gills
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  • #1
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Homework Statement



The rotor (flywheel) of a toy gyroscope has mass 0.140 kilograms. Its moment of inertia about its axis is 1.20 x10^-4 kilogram meters squared. The mass of the frame is 0.0250 kilograms. The gyroscope is supported on a single pivot with its center of mass a horizontal distance 4.00 centimeters from the pivot. The gyroscope is precessing in a horizontal plane at the rate of one revolution in 2.20 seconds.

(a) Find the upward force [tex]\vec{n}[/tex] exerted by the pivot.

(b)Find the angular speed w at which the rotor is spinning about its axis, expressed in revolutions per minute.

Homework Equations



yf_Figure_10_49.jpg


[tex]\tau[/tex]net = I*[tex]\alpha[/tex]

F = ma

The Attempt at a Solution



I'm new to gyroscopes, so if anyone can point me in the right direction and help me step by step, that would be great!
 

Answers and Replies

  • #2
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Bueler? ...Bueler? ....Bueler? ....Bueler?
 
  • #3
116
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part (a) =

(m_gyro + m_frame)g = 1.617N

part(b)---working on it
 

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