find the angular momentum of the record. please help its due tomorrow!!?
a 0.015 kg record with a radius of 15 cm rotates with an angular speed of 33 1/3 rpm. find the angular momentum of the record.
are u supposed to convert 33 1/3 to seconds? or what???? could someone please work it out for me so i could see and learn how to do it? thanks so much!
- Dr DLv 71 decade agoFavorite Answer
I = mass moment of inertia = 1/2 * m*r^2
= 1/2 * 0.015 * 0.15^2
ω = 100/3 * 2π / 60
we need to convert rpm to radians per second
Ang mom = 5.89 x 10^-4 kg m^2 / s
- Anonymous4 years ago
Find Angular MomentumSource(s): https://shorte.im/a80lf
- 1 decade ago
L=I X W
I=moent of inertia of the disc with refeence to the axis passing through its centre that is I=(MR)R/2
to convert angular speed one revoluion =2 pie radians
where Pie = 22/7
and minute=60 seconds