Determine the moment of inertia of a uniform cube when the rotation axis is along an...
Determine the moment of inertia of a uniform cube when the rotation axis is along an edge. Suppose its total mass is M=2.5kg, the edges are each 10.0 cm long, it begins at rest, and a constant force, F=4.0N is applied to the edge diagonally opposite the rotation axis. The moment arm and the force are at an angle of 60 degrees. What would its angular displacement from the start be when its angular velocity is 13 rad/s? Draw the force, moment arm, torque and angular velocity vectors.
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Determine the moment of inertia of a uniform cube when the
rotation axis is along an...
Two disks are rotating about the same axis. Disk A has a moment of inertia of...
Two disks are rotating about the same axis. Disk A has a moment of inertia of 4.45 kg.m2 and an angular velocity of +4.87 rad/s. Disk B is rotating with an angular velocity of -7.28 rad/s. The two disks are then linked together without the orques, so that they rotate as a single unit with an angular velocity of -3.59 rad/s. The axis of rotation for this unit is the same as that for the separate disks. What is the...
Two disks are rotating about the same axis. Disk A has a moment of inertia of...
Two disks are rotating about the same axis. Disk A has a moment of inertia of 9.20 kg·m2 and an angular velocity of +9.96 rad/s. Disk B is rotating with an angular velocity of -8.43 rad/s. The two disks are then linked together without the aid of any external torques, so that they rotate as a single unit with an angular velocity of -3.59 rad/s. The axis of rotation for this unit is the same as that for the separate...
Two disks are rotating about the same axis. Disk A has a moment of inertia of...
Two disks are rotating about the same axis. Disk A has a moment of inertia of 3.3 kg · m2 and an angular velocity of +7.4 rad/s. Disk B is rotating with an angular velocity of -9.3 rad/s. The two disks are then linked together without the aid of any external torques, so that they rotate as a single unit with an angular velocity of -2.5 rad/s. The axis of rotation for this unit is the same as that for...
Two disks are rotating about the same axis. Disk A has a moment of inertia of...
Two disks are rotating about the same axis. Disk A has a moment of inertia of 4.50 kg·m2 and an angular velocity of +1.17 rad/s. Disk B is rotating with an angular velocity of -6.93 rad/s. The two disks are then linked together without the aid of any external torques, so that they rotate as a single unit with an angular velocity of -3.80 rad/s. The axis of rotation for this unit is the same as that for the separate...
Two disks are rotating about the same axis. Disk A has a moment of inertia of...
Two disks are rotating about the same axis. Disk A has a moment of inertia of 6.08 kg·m2 and an angular velocity of +3.60 rad/s. Disk B is rotating with an angular velocity of -6.84 rad/s. The two disks are then linked together without the aid of any external torques, so that they rotate as a single unit with an angular velocity of -4.50 rad/s. The axis of rotation for this unit is the same as that for the separate...
If we change the axis to ?2 ball as shown. Determine the moment of inertia about...
If we change the axis to ?2 ball as shown. Determine the moment
of inertia about the given axis of rotation. Calculate the torque
magnitude acting on the system.
nau be the speed if no downforce acted on the car? The drawing shows a system of objects, which consists of three small balls connected by massless rods. The axis is perpendicular to the page as shown. The force of magnitude F is applied to the m2 ball (see the drawing)....
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. The pulley has a radius of 2.70 m and a moment of inertia of 39.0...
1. The pulley has a radius of 2.70 m and a moment of inertia of 39.0 kg·m2. The hanging mass is 4.20 kg and it exerts a force tangent to the edge of the pulley. What is the angular acceleration of the pulley? (answer needed in rad/s^2 2. A string is wound tight around the spindle of a top, and then pulled to spin the top. While it is pulled, the string exerts a constant torque of 0.150 N·m on...
Which of the following statements is false? The moment of inertia of an object depends on...
Which of the following statements is false? The moment of inertia of an object depends on the location of its axis of rotation The moment of inertia of an object depends on the angular acceleration of the object as it rotates An object can continue to rotate in the absence of torque An applied net torque may reduce the angular speed of an object Of the particles that make up an object, the particle with the smallest mass may contribute...
The flywheel of an engine has a moment of inertia 240 kg-m2 about its rotation axis...
The flywheel of an engine has a moment of inertia 240 kg-m2 about its rotation axis torque is required to bring it up to an angular speed of 440 rev/min in a lime of 7 90s, starting from rest? What N m - Part B
Two disks are rotating about the same axis. Disk A has a moment of inertia of 4.45 kg.m2 and an angular velocity of +4.87 rad/s. Disk B is rotating with an angular velocity of -7.28 rad/s. The two disks are then linked together without the orques, so that they rotate as a single unit with an angular velocity of -3.59 rad/s. The axis of rotation for this unit is the same as that for the separate disks. What is the...
If we change the axis to ?2 ball as shown. Determine the moment
of inertia about the given axis of rotation. Calculate the torque
magnitude acting on the system.
nau be the speed if no downforce acted on the car? The drawing shows a system of objects, which consists of three small balls connected by massless rods. The axis is perpendicular to the page as shown. The force of magnitude F is applied to the m2 ball (see the drawing)....
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...
Which of the following statements is false? The moment of inertia of an object depends on the location of its axis of rotation The moment of inertia of an object depends on the angular acceleration of the object as it rotates An object can continue to rotate in the absence of torque An applied net torque may reduce the angular speed of an object Of the particles that make up an object, the particle with the smallest mass may contribute...
The flywheel of an engine has a moment of inertia 240 kg-m2 about its rotation axis torque is required to bring it up to an angular speed of 440 rev/min in a lime of 7 90s, starting from rest? What N m - Part B
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