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 172 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
YES! Correct, THANKS for helping me on my review

ecabral0

  • Member
  • Posts: 310
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

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?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

A young Lipizzan at the Spanish Riding School in training equipment, wearing saddle, bridle and long A young Lipizzan at the Spanish Riding School in training equipment, wearing saddle, bridle and long
Blocked at every turn by congressional Republicans who hated him, President Obama turned to techniqu Blocked at every turn by congressional Republicans who hated him, President Obama turned to techniqu
Most stepper motors use four wires, which are pulsed by the computer to rotate the armature in ... Most stepper motors use four wires, which are pulsed by the computer to rotate the armature in ...
How to horizontally shift a quadratic function along the x-axis How to horizontally shift a quadratic function along the x-axis
How to reflect a sinusoidal function across the x-axis (y=a*sin⁡b(x−c)+d) How to reflect a sinusoidal function across the x-axis (y=a*sin⁡b(x−c)+d)
Rotate v/s Revolve. Rotate v/s Revolve.
Video: Electrical Conduction System of the Heart

For a complete list of videos, visit our video library