A certain alarm clock ticks four times each second, with each tick representing half a period. The balance wheel consists of a thin rim with radius 0.53 cm , connected to the balance staff by thin spokes of negligible mass. The total mass of the balance wheel is 0.80 g .

Respuesta :

Answer:

[tex]2.8\times10^{-8} Kgm^2[/tex]

Explanation:

Assuming that we have to calculate moment of inertia of balanced wheel about the shaft.

mass of balanced wheel = 0.80 g

radius of the rim = 0.53 cm

moment of inertia (I) = [tex]mr^2[/tex]

= [tex]0.85\times10^{-2}(\times0.58\times10^{-2})^2[/tex]

= [tex]2.8\times10^{-8} Kgm^2[/tex]

therefore, MOI of the wheel =  [tex]2.8\times10^{-8} Kgm^2[/tex]