This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A nonuniform 2.0-kg rod is 2.0 m long. The rod is mounted to rotate freely about a horizontal axis ... (Read 137 times)

s.tung

  • Hero Member
  • *****
  • Posts: 577
on: Jul 28, 2018
A nonuniform 2.0-kg rod is 2.0 m long. The rod is mounted to rotate freely about a horizontal axis perpendicular to the rod that passes through one end of the rod. The moment of inertia of the rod about this axis is 4.0 kgm2 . The center of mass of the rod is 1.2 m from the axis. If the rod is released from rest in the horizontal position, what is its angular speed as it swings through the vertical position?
 a. 3.4 rad/s
  b. 4.4 rad/s
  c. 4.3 rad/s
  d. 5.8 rad/s
  e. 6.8 rad/s

Question 2

A uniform rod of length (L = 2.0 m) and mass (M = 1.5 kg) is pivoted about a horizontal frictionless pin through one end. The rod is released from rest at an angle of 30 below the horizontal. What is the angular speed of the rod when it passes through the vertical position? (The moment of inertia of the rod about the pin is 2.0 kgm2.)
 a. 3.5 rad/s
  b. 2.7 rad/s
  c. 3.1 rad/s
  d. 2.3 rad/s
  e. 1.6 rad/s


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Smiles0805

  • Sr. Member
  • ****
  • Posts: 305
Reply #1 on: Jul 28, 2018
Answer to Question 1

A

Answer to Question 2

B


s.tung

  • Member
  • Posts: 577
Reply 2 on: Jul 28, 2018
Great answer, keep it coming :)

sultana.d

  • Member
  • Posts: 320
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

Did you know?

Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Did you know?

Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

fMRI Machine It is not until after toddlerhood that most children can lie still long enough to have fMRI Machine It is not until after toddlerhood that most children can lie still long enough to have
A typical ratchet used to rotate a socket. A ratchet makes a ratcheting noise when it is being ... A typical ratchet used to rotate a socket. A ratchet makes a ratcheting noise when it is being ...
Long-range forecasts Long-range forecasts
Superior view of axis and right lateral view of axis Superior view of axis and right lateral view of axis
Determine if each function is continuous, If the function is not continuous, find the x-axis Determine if each function is continuous, If the function is not continuous, find the x-axis
When dry, the long fruits (pods) of the California poppy (Eschscholzia californica) split open sudde When dry, the long fruits (pods) of the California poppy (Eschscholzia californica) split open sudde
Video: Red alga life cycle Animation

For a complete list of videos, visit our video library