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

Specificity is an important aspect of nursing documentation- what tools does your organization use for nursing handoff?
Student test scores are kept on file for: OA. 20 years. OB.6 months. OC. 1 year. OD. 5 years.
Males tend to prefer which type of gambling more than females?
Write an equation in point-slope form for the line through the given point with the given slope. (10, -6); m = -5/8 1. y - 6 = - 5/8 (x - 10) 2. y - 6 = - 5
Evaluate the expression for c = –1. c2 − 28c + 9 = Evaluate the expression for c = –1. c2 − 28c + 9 =
Finland briefly had a King in 1918. From which country's royal family was he taken?
A transformer will not back-feed until it is mounted on a pole. A. True B. False
The AIDA approach includes? 1) Attention 2) Interest 3) Desire and action 4) All of the above
My step-mother's son is my
A cylindrical oil tank 8 ft deep holds 350 gallons when filled to capacity. How many gallons remain in the tank when the depth of oil is 5 1/2ft?