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

Author Question: A wheel (radius = 12 cm) is mounted on a frictionless, horizontal axle that is perpendicular to the ... (Read 589 times)

renzo156

  • Hero Member
  • *****
  • Posts: 526
on: Jul 28, 2018
A wheel (radius = 12 cm) is mounted on a frictionless, horizontal axle that is perpendicular to the wheel and passes through the center of mass of the wheel. A light cord wrapped around the wheel supports a 0.40-kg object. If released from rest with the string taut, the object is observed to fall with a downward acceleration of 3.0 m/s2 . What is the rotational inertia (of the wheel) about the given axle?
 a. 0.023 kg/m2
  b. 0.013 kg/m2
  c. 0.020 kg/m2
  d. 0.016 kg/m2
  e. 0.035 kg/m2

Question 2

Three particles, each of which has a mass of 80 g, are positioned at the vertices of an equilateral triangle with sides of length 60 cm. The particles are connected by rods of negligible mass. What is the moment of inertia of this rigid body about an axis that is parallel to one side of the triangle and passes through the respective midpoints of the other two sides?
 a. 0.018 kg/m2
  b. 0.020 kg/m2
  c. 0.016 kg/m2
  d. 0.022 kg/m2
  e. 0.032 kg/m2


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

shayla

  • Sr. Member
  • ****
  • Posts: 323
Reply #1 on: Jul 28, 2018
Answer to Question 1

b

Answer to Question 2

c


renzo156

  • Hero Member
  • *****
  • Posts: 526
Reply #2 on: Jul 28, 2018
Both answers were spot on, thank you once again


shayla

  • Sr. Member
  • ****
  • Posts: 323
Reply #3 on: Jul 28, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

Did you know?

More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

Did you know?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Did you know?

A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

Atomic Radius Atomic Radius
Horizontal, frontal (coronal), and sagittal planes in the human brain and a cross section of the ... Horizontal, frontal (coronal), and sagittal planes in the human brain and a cross section of the ...
Perform horizontal stroking of the thigh by facing the table and placing hands on the thigh with ... Perform horizontal stroking of the thigh by facing the table and placing hands on the thigh with ...
Inferior view of distal ends of radius and ulna Inferior view of distal ends of radius and ulna
A 2.10-kg hammer is transported to the Moon. The radius of the Moon is 1.74 × 106 m, its mass ... A 2.10-kg hammer is transported to the Moon. The radius of the Moon is 1.74 × 106 m, its mass ...
A 1000-kg car is slowly picking up speed as it goes around a horizontal unbanked curve whose ... A 1000-kg car is slowly picking up speed as it goes around a horizontal unbanked curve whose ...
Video: Phlebotomy

For a complete list of videos, visit our video library