Purchase Solution

Mass of Inertia and Angular Acceleration

Not what you're looking for?

Ask Custom Question

1. Two slender rods are welded together at right angles and released from rest as shown. The two welded bars rotate freely around point C. Each bar is 10 lbs and is 1.5 ft long. At release, what is the acceleration magnitude of point B?

2. A vertical 0.2-meter-long slender bar with a uniform cross section is released from rest. It rotates in a vertical plane under the action of gravity. The coefficient of friction between the bar and horizontal surface is 0.5. Determine the angle theta when the bar begins to slip.

3. The unbalanced wheel O has a mass of 30kg, and its radius of gyration with respect to the axis of rotation is 7cm. A 20 kg block B is attached to the wheel by a cable. A constant moment of 15 N-m is applied to the wheel. At the instant shown, the angular velocity w of the wheel is 4 rad/s. Determine the force exerted on the wheel by the pin at support O.

4. A bar of mass m is supported by means of a hinge. For what value of x is the angular acceleration of the horizontal bar maximum? (Point C is at the center of the rod.)

Attachments
Purchase this Solution
Solution Summary

The calculations and answers to these problems are included in the attached PDF document. Calculations are not formatted in Word, rather, are written neatly by hand.

Solution provided by:
Amrit Lal Ahuja, PhD (IP)
Education
  • BEng, Allahabad University, India
  • MSc , Pune University, India
  • PhD (IP), Pune University, India
Recent Feedback
  • " In question 2, you incorrectly add in the $3.00 dividend that was just paid to determine the value of the stock price using the dividend discount model. In question 4 response, it should have also been recognized that dividend discount models are not useful if any of the parameters used in the model are inaccurate. "
  • "feedback: fail to recognize the operating cash flow will not begin until the end of year 3."
  • "Answer was correct"
  • "Great thanks"
  • "Perfect solution..thank you"
Purchase this Solution
Free BrainMass Quizzes
Air Pollution Control - Environmental Science

Working principle of ESP

Architectural History

This quiz is intended to test the basics of History of Architecture- foundation for all architectural courses.

View More Free Quizzes
Related BrainMass Solutions

  • Pulley System - Torque, Inertia, Acceleration, Velocity, and Kinetic Energy

    38320 Torque, Inertia, Acceleration, Velocity, and Kinetic Energy A belt drives a pulley of radius 4.0 cm and negligible mass as shown. The pulley is attached to a larger, solid wheel of mass 60 kg and radius 30 cm that is initially at rest.

  • Conservation of Angular Momentum and Apparent Free-Fall Acceleration

    27717 Conservation of Angular Momentum and Apparent Free-Fall Acceleration A space station is shaped like a giant wheel and has a radius of 100 metres and a moment of inertia of 5.00 x 10^8 kg m^2. A crew of 150 is living on the rim.

  • Hoist drum questions

    The solution explains how you can calculate linear acceleration, angular acceleration, tension, the moment of inertia and friction torque in relation to a hoist drum.

  • Rotating spaceship

    - what is the contribution to the total moment of inertia of the people that moved to the center?) and express the final angular momentum with this new moment of inertia and the final angular velocity.

  • Current carrying coil placed in a magnetic field

    388358 Determining the initial angular acceleration of a coil A uniform rectangular coil of total mass 270 g and dimensions 0.5m x 1.0m is oriented perpendicular to a uniform 3.90-T magnetic field (the figure).

  • Rotation and torque

    The relation between torque , angular accelerationand moment of inertia I is given by: (1.1) The moment of inertia of a collection of masses rotating about an axis is given by: (1.2) Where is the distance between mass i to the axis of

  • Yo-yo speed and energy; angular speed of a bicycle wheel

    303112 Yo-yo speed and energy; angular speed of a bicycle wheel A yo-yo has a rotational inertia of 1180 g·cm2 and a mass of 148 g. Its axle radius is 3.58 mm, and its string is 139 cm long. The yo-yo rolls from rest down to the end of the string.

  • Pulley with mass - Angular acceleration and velocity

    39250 Pulley with mass - Angular acceleration and velocity See attached file. The double pulley below has a moment of inertia of 50 kgm2 and is initially at rest. The outside radius is 500 mm and the inner radius is 250 mm.

  • What net torque is being applied to the blades?

    The rotational laws of motion correspond very nicely to the linear ones you are familiar with. Torques act like forces, moments of inertia act like mass, and angular acceleration acts like linear acceleration.

  • dynamics and inertia

    562122 dynamics and inertia The vehicle s used to transport supplies to and from the bottom of the 25-present grade. Each par of wheels one at A and the other at B has a mass of 140 kg with a radius of gyration of 100 mm.

View More Related Solutions