Question

s shown. Initial Final

Given
• Hollow hoop has a mass M and radius R. It is free to rotate about an axis perpendicular to the page and the edge of the hoop. Released frm rest, passes through horizontal in final state, and rotates right

Question
A. Direction of final angular velocity and acceleration vector?
B. Rotational inertia of hoop about axis before it is released

Do the following increase, decrease,, or remain the same (Between final and initial)
C. Magnitude of gravitational PE of hoop
D. Magnitude of torque on hoop due to gravity
E. Magnitude of angular velocity, kinetic energy,, angular momentum,, and acceleration of hoop,
F. Rotational inertia of hoop

0 0
Add a comment Improve this question Transcribed image text
Answer #1

P mg @ w o final = clockwise acto clockwise mg here mrzt mre - 2 mo2= 2MR? I hoop, ands decreased © g PE cm comis down d as

Add a comment
Know the answer?
Add Answer to:
Given • Hollow hoop has a mass M and radius R. It is free to rotate...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • 2. A rigid sphere with mass 20 Kg and radius 0.6 m is free to rotate...

    2. A rigid sphere with mass 20 Kg and radius 0.6 m is free to rotate around a fixed axis passing through its center (I = 2/5 mR2). The sphere is initially at rest. A force of 4 N is applied at the edge (or equator) of the sphere, tangent to the sphere and perpendicular to the sphere radius, generating a constant torque for 3 s. (i) Calculate the magnitude of the angular acceleration of the sphere. (ii) Calculate the...

  • A disk with moment of inertia 9.15 × 10−3 kg∙m^2 initially rotates about its center at...

    A disk with moment of inertia 9.15 × 10−3 kg∙m^2 initially rotates about its center at angular velocity 5.32 rad/s. A non-rotating ring with moment of inertia 4.86 × 10−3 kg∙m^2 right above the disk’s center is suddenly dropped onto the disk. Finally, the two objects rotate at the same angular velocity ?? about the same axis. There is no external torque acting on the system during the collision. Please compute the system’s quantities below. 1. Initial angular momentum ??...

  • a hoop rotates about an axis through the center with an angular velocity of 70 rad/s...

    a hoop rotates about an axis through the center with an angular velocity of 70 rad/s . if the rotational kinetic energy of the hoop is 500 j what is the angular momentum in si units

  • part 1 A thin, hollow sphere of radius r = 0.480 m and mass m =...

    part 1 A thin, hollow sphere of radius r = 0.480 m and mass m = 13.5 kg turns counterclockwise about a vertical axis through its center (when viewed from above), at an angular speed of 2.90 rad/s. What is its vector angular momentum about this axis? (Enter the magnitude in kg. m2/s.) magnitude kg . m/s direction ---Select--- part 2 A particle of mass 0.500 kg is attached to the 100-cm mark of a meterstick of mass 0.200 kg....

  • The figure shows a rigid structure consisting of a circular hoop of radius R and mass...

    The figure shows a rigid structure consisting of a circular hoop of radius R and mass m1 and a square made of four thin bars, each of length R and mass m. The rigid structure rotates at a constant speed about a vertical axis, with a period of rotation of s. If R = m and m = kg, calculate the angular momentum about that axis. At the instant of the figure, a kg particle P has a position vector...

  • PART B A uniform hoop of mass ? = 2 ?? and radius ? = 50...

    PART B A uniform hoop of mass ? = 2 ?? and radius ? = 50 ?? rolls smoothly with constant angular speed of ? = 1.5 ???/? on a horizontal surface. Note that the rotational inertia of the hoop about its central axis is ??^2. Find the kinetic energy of the hoop. Q14 (10 points): An object of mass 2.4 kg moves in an xy-plane. At a given instant, ts position and its velocity components are as shown in...

  • 4A uniform rod of length L-2.5 m and mass M- 5.8 kg is free to rotate...

    4A uniform rod of length L-2.5 m and mass M- 5.8 kg is free to rotate about the y axis at one opposite end of the rod with initial speed 3.4 m/s in a direction that is perpendicular to the rod. The sphere rebounds off of the rod in the opposite direction with a speed of 1.8 m/s. end, as shown. A steel sphere of mass m = 1.7 kg is thrown at the 72 a. Calculate the moment of...

  • A child pushes her friend (m = 25 kg) located at a radius r = 1.5...

    A child pushes her friend (m = 25 kg) located at a radius r = 1.5 m on a merry-go-round (rmgr = 2.0 m, Imgr = 1000 kg*m2) with a constant force F = 90 N applied tangentially to the edge of the merry-go-round (i.e., the force is perpendicular to the radius). The merry-go-round resists spinning with a frictional force of f = 10 N acting at a radius of 1 m and a frictional torque τ = 15 N*m...

  • A student sitting on a stool that is free to rotate (frictionless), but is initially at...

    A student sitting on a stool that is free to rotate (frictionless), but is initially at rest, holds a bicycle wheel.  The wheel has a rotational velocity of 10 rev/s about a vertical axis counter clockwise (vector of angular momentum points up).  The rotational inertia of the wheel is 4 kg*m2 about its center and the rotational inertia of the student and wheel and platform about the rotational axis of the platform is 12 kg*m2. If the student flips the axis of...

  • Problem 3. (24 points) A uniform rod of mass M and length d is free to...

    Problem 3. (24 points) A uniform rod of mass M and length d is free to pivot about one end. The moment of inertia of the rod about the pivot is I = Md2/3, and the rod's center of mass is at its midpoint. The rod is released from rest at angle above the horizontal, then rotates downward under the influence of gravity. d x e When the rod reaches angle below the horizontal, determine (a) (4 points) the rotational...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT