BiancaMarie3942 BiancaMarie3942
  • 01-08-2018
  • Physics
contestada

What is the angular momentum of a 3.2-kg uniform cylindrical grinding wheel of radius 27 cm when rotating at 1500 rpm ?

Respuesta :

aristocles aristocles
  • 08-08-2018

Angular momentum is given by

[tex]L = I w[/tex]

here we have

I = moment of inertia of wheel

[tex]I = \frac{1}{2}mR^2[/tex]

[tex]I = \frac{1}{2}*3.2*0.27^2[/tex]

[tex]I = 0.117 kg*m^2[/tex]

angular speed is given as 1500 rpm

[tex]w = 2 \pi f[/tex]

[tex]w = 2 *\pi * \frac{1500}{60}[/tex]

[tex]w = 157 rad/s[/tex]

now angular momentum is given by

[tex] L = 0.117 * 157 = 18.4 kg*m^2* rad/s[/tex]

Answer Link

Otras preguntas

the _______ is where the geosphere meets the ocean
rewrite the expression using distributive property 49+35.
If y=-4 when x=10, determine y when x=5
AC, DF, and GI are parallel. Use the figure to complete the proportion.BEADJBBC
there are 5 times as many yellow labs as terriers in the dog park. if there are a totsl of 18 dogs , how many dogs are terriers? how would I draw a model an d w
how do you  figure out the ratio stars to squares when there are 11 squares 5 stars and two circles in the data?
how does oral history help us understand the past
What makes Holden depressed in Catcher in the Rye? Can you give a page number and quotation?
In French, our teacher has asked us to write a piece of writing where we sell our sibling on eBay. We have to describe them, and I can't figure it out?! Please
What's the square root of 247