I'm having some trouble with this question. Not sure how to go about solving it. Any help would be appreciated. Thanks.
An object is made up of a disk (M=7.0kg, R=2.0m) and two point masses (m1=3.0kg and m2=4.0kg). The arrangement of the disk and the point masses are shown in the figure and the dimensions are d1=1.0m, d2=1.5m, d3=0.5m, d4=1.0m, and t=0.3m.
A. What is the x-coordinate of the center of mass of the object?
B. What is the z-coordinate of the center of mass of the object?
C. What is the moment of inertia of the object about rotation axis z?
D. What is the moment of inertia of the object about rotation
axis I (the moment of inertia of a disk rotating about its
edge is 
?
Homework Answers
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I'm having some trouble with this question. Not sure how to go about solving it. Any...
The moment of inertia of a disk rotating about its axis of symmetry is Icm=1/2MR^2 The...
The moment of inertia of a disk rotating about its axis of symmetry is Icm=1/2MR^2 The formula for finding the moment of inertia of an object rotating off axis if its on axis center of mass moment of inertia is I=Icm + Md^2 Given a disk 10cm in diameter whose mass is 1500g, find its off-axis moment of inertia if the disk is located 10cm from the axis rotation.
A disk of mass m radius R, and area A has a su tace mass de sity Ơ(r - where r is the distance rr...
A disk of mass m radius R, and area A has a su tace mass de sity Ơ(r - where r is the distance rrom the center or the disk to a specific point on the disk see the follo ino rigure what is the moment or inertia or the disk about an axis through the center? Use AR the following as necessary: m and R.) Axis of rotation
A disk of mass m radius R, and area A has...
Problem 3: A merry-go-round can be considered a uniform disk of mass 145 kg and radius...
Problem 3: A merry-go-round can be considered a uniform disk of mass 145 kg and radius 2.10 m free to rotate about a frictionless axis through its center. A 40.0 kg child stands at the edge and the system is initially rotating at 0.300 rad/sec. The child begins to walk around the edge of the merry-go-round with a velocity of 0.250 m/s relative to the ground in the direction of the rotation. What is the angular velocity of the merry-go-round...
1. A piece of laboratory equipment consists of a solid disk (the gray pulley) with a...
1. A piece of laboratory equipment consists of a solid disk (the gray pulley) with a mass of 0.126 kg and a radius of 0.111 m, a rod (mass 0.193 kg, length 0.631 m) pivoted about its center, plus two "point" masses (eåch 0.108 kg) attached to it so each is a distance of 0.217 m from the center pivot. See drawing. For rotation about the center pivot point... A) ... what is the moment of inertia of the solid...
Page 13 9. A 49.8-kg athlete running at 4.54 m/s suddenly jumps onto a stationary playground...
Page 13 9. A 49.8-kg athlete running at 4.54 m/s suddenly jumps onto a stationary playground merry-go-round at a distance 1.45 m from the axis of rotation of the merry-go-round. She is traveling tangential to the edge of the merry-go-round just before jumping on. The moment of inertia about its axis of rotation is 625 kg m2 and very little friction at its rotation axis. What is the angular speed of the merry-go-round just after she has jumped onto it?...
Posted the wrong picture before... The question is regarding question 4. Thank you! I thought its...
Posted the wrong picture before... The question is
regarding question 4. Thank you! I thought its 2r^2 but wanted to
check.
3. A force is applied a distance r from a pivot in a direction into the page as shown. In what direction is the torque on this object? 4. By what factor does the moment of inertia of a point mass located a distance r from an axis of rotation change if it is moved a distance 2r away?...
QUESTION 1 A dumbell consists of two identical masses of mass M attached to a either...
QUESTION 1 A dumbell consists of two identical masses of mass M attached to a either end of a rod of length 2X and of negligible mass. If the dumbell is rotated about an axis perpendicular to the rod and passing through the middle of the rod, as shown in the diagram. What is the rotational inertia of the dumbell? Axis. -*-X ←-ㄧㄧㄨ 2Mx2 2M2x MX2 M2x QUESTION 2 Two identical uniform thin rods of length 0.542 m and mass...
Two thin disks are attached as shown to the right. The angle ? = 39.1°, and...
Two thin disks are attached as shown to the right. The angle ? =
39.1°, and the masses and radii of the disks are listed in the
table below. What is the moment of inertia of this composite object
about an axis perpendicular to the screen, through point p?
Two thin disks are attached as shown to the right. The angle ? = 39.1°, and the masses and radii of the disks are listedin the table below Disk radius (cm)Mass...
Two thin disks are attached as shown to the right. The angle θ = 22.5°, and...
Two thin disks are attached as shown to the right. The angle θ =
22.5°, and the masses and radii of the disks are listed in the
table below. What is the moment of inertia of this composite object
about an axis perpendicular to the screen, through point p?
Two thin disks are attached as shown to the right. The angle e 22.5, and the masses and radii of the disks are listed in the table below. Disk radius (cm)Mass...
Two thin disks are attached as shown to the right. The angle θ = 39.1°, and...
Two thin disks are attached as shown to the right. The angle θ =
39.1°, and the masses and radii of the disks are listed in the
table below. What is the moment of inertia of this composite object
about an axis perpendicular to the screen, through point p?
Two thin disks are attached as shown to the right. The angle = 39.1°, and the masses and radii of the disks are listed in the table below. Disk radius (cm)...
A disk of mass m radius R, and area A has a su tace mass de sity Ơ(r - where r is the distance rrom the center or the disk to a specific point on the disk see the follo ino rigure what is the moment or inertia or the disk about an axis through the center? Use AR the following as necessary: m and R.) Axis of rotation
A disk of mass m radius R, and area A has...
Problem 3: A merry-go-round can be considered a uniform disk of mass 145 kg and radius 2.10 m free to rotate about a frictionless axis through its center. A 40.0 kg child stands at the edge and the system is initially rotating at 0.300 rad/sec. The child begins to walk around the edge of the merry-go-round with a velocity of 0.250 m/s relative to the ground in the direction of the rotation. What is the angular velocity of the merry-go-round...
1. A piece of laboratory equipment consists of a solid disk (the gray pulley) with a mass of 0.126 kg and a radius of 0.111 m, a rod (mass 0.193 kg, length 0.631 m) pivoted about its center, plus two "point" masses (eåch 0.108 kg) attached to it so each is a distance of 0.217 m from the center pivot. See drawing. For rotation about the center pivot point... A) ... what is the moment of inertia of the solid...
Page 13 9. A 49.8-kg athlete running at 4.54 m/s suddenly jumps onto a stationary playground merry-go-round at a distance 1.45 m from the axis of rotation of the merry-go-round. She is traveling tangential to the edge of the merry-go-round just before jumping on. The moment of inertia about its axis of rotation is 625 kg m2 and very little friction at its rotation axis. What is the angular speed of the merry-go-round just after she has jumped onto it?...
Posted the wrong picture before... The question is
regarding question 4. Thank you! I thought its 2r^2 but wanted to
check.
3. A force is applied a distance r from a pivot in a direction into the page as shown. In what direction is the torque on this object? 4. By what factor does the moment of inertia of a point mass located a distance r from an axis of rotation change if it is moved a distance 2r away?...
QUESTION 1 A dumbell consists of two identical masses of mass M attached to a either end of a rod of length 2X and of negligible mass. If the dumbell is rotated about an axis perpendicular to the rod and passing through the middle of the rod, as shown in the diagram. What is the rotational inertia of the dumbell? Axis. -*-X ←-ㄧㄧㄨ 2Mx2 2M2x MX2 M2x QUESTION 2 Two identical uniform thin rods of length 0.542 m and mass...
Two thin disks are attached as shown to the right. The angle ? =
39.1°, and the masses and radii of the disks are listed in the
table below. What is the moment of inertia of this composite object
about an axis perpendicular to the screen, through point p?
Two thin disks are attached as shown to the right. The angle ? = 39.1°, and the masses and radii of the disks are listedin the table below Disk radius (cm)Mass...
Two thin disks are attached as shown to the right. The angle θ =
22.5°, and the masses and radii of the disks are listed in the
table below. What is the moment of inertia of this composite object
about an axis perpendicular to the screen, through point p?
Two thin disks are attached as shown to the right. The angle e 22.5, and the masses and radii of the disks are listed in the table below. Disk radius (cm)Mass...
Two thin disks are attached as shown to the right. The angle θ =
39.1°, and the masses and radii of the disks are listed in the
table below. What is the moment of inertia of this composite object
about an axis perpendicular to the screen, through point p?
Two thin disks are attached as shown to the right. The angle = 39.1°, and the masses and radii of the disks are listed in the table below. Disk radius (cm)...
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