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11. A student initially stands on a circular platform that is free to rotate without friction...
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...
A man stands on a platform that is rotating (without friction) with an angular speed of...
A man stands on a platform that is rotating (without friction) with an angular speed of 1.76 rev/s; his arms are outstretched and he holds a brick in each hand. The rotational inertia of the system consisting of the man, bricks, and platform about the central axis is 7.65 kg·m2. If by moving the bricks the man decreases the rotational inertia of the system to 2.27 kg·m2, (a) what is the resulting angular speed of the platform and (b) what...
A man stands on a platform that is rotating (without friction) with an angular speed of...
A man stands on a platform that is rotating (without friction) with an angular speed of 1.30 rev/s; his arms are outstretched and he holds a brick in each hand. The rotational inertia of the system consisting of the man, bricks, and platform about the central axis is 4.34 kg·m2. If by moving the bricks the man decreases the rotational inertia of the system to 2.26 kg·m2, (a) what is the resulting angular speed of the platform and (b) what...
A man stands on a platform that is rotating (without friction) with an angular speed of...
A man stands on a platform that is rotating (without friction) with an angular speed of 1.61 rev/s; his arms are outstretched and he holds a brick in each hand. The rotational inertia of the system consisting of the man, bricks, and platform about the central axis is 7.06 kg·m2. If by moving the bricks the man decreases the rotational inertia of the system to 1.96 kg·m2, (a) what is the resulting angular speed of the platform and (b) what...
A man stands on a platform that is rotating (without friction) with an angular speed of...
A man stands on a platform that is rotating (without friction) with an angular speed of 1.29 rev/s; his arms are outstretched and he holds a brick in each hand. The rotational inertia of the system consisting of the man, bricks, and platform about the central axis is 4.66 kg.m^2. If by moving the bricks the man decreases the rotational inertia of the system to 1.03 kg-m^2, (a) what is the resulting angular speed of the platform and (b) what...
A man stands on a platform that is rotating (without friction) with an angular speed of...
A man stands on a platform that is rotating (without friction) with an angular speed of 2.1 rev/s; his arms are outreached and he holds a weight in each hand. The rotational inertia of the system of man, weights, and platform about the central axis is 15.00 kg m2. If by moving the weights the man decreases the rotational inertia of the system to 9.90 kg m2, a) what is the resulting angular speed of the platform?(rad/s) b) What is...
A 43kg child stands on a spinning platform that has been well maintained(neglect friction in the...
A 43kg child stands on a spinning platform that has been well maintained(neglect friction in the axle). Initially the platform is spinning at 2.1 revs/s while the child's arms are extended outward(holding some weights). The child then pulls the weights back to close to their body. What is the final angular speed in revs/s of the platform? Assume that the child can be considered a cylinder with a diameter of 1.3m, spinning along its center axis and the weights are...
A 41 kg child stands on a spinning platform that has been well maintained (neglect friction...
A 41 kg child stands on a spinning platform that has been well maintained (neglect friction in the axle). Initially the platform spinning at 3.4 rev/s while the child's arms are extended outward (holding some weights). The child then pulls the weights back to close to their body. What is the final angular speed in rev/s of the platform? Assume that the child can be considered a cylinder with a diameter of 0.8 m, spinning along its center axis and...
A 35.2 kg child stands on a spinning platform that has been well maintained (neglect friction...
A 35.2 kg child stands on a spinning platform that has been well maintained (neglect friction in the axle). Initially the platform is spinning at 1 rev/s while the child's arms are extended outward (holding some weights). The child then pulls the weights back to close to their body. What is the final angular speed in revis of the platform? Assume that the child can be considered a cylinder with a diameter of 1 m, spinning along its center axis...
SOS A man stands on a platform that is rotating (without friction) with an angular speed...
SOS
A man stands on a platform that is rotating (without friction) with an angular speed of 2.35 rev/s; his arms are outstretched and he holds a brick in each hand. The rotational inertia of the system consisting of the man, bricks, and platform about the central axis is 5.13 kg.m2. If by moving the bricks the man decreases the rotational inertia of the system to 1.28 kg.mp, (a) what is the resulting angular speed of the platform and (b)...
A man stands on a platform that is rotating (without friction) with an angular speed of 1.29 rev/s; his arms are outstretched and he holds a brick in each hand. The rotational inertia of the system consisting of the man, bricks, and platform about the central axis is 4.66 kg.m^2. If by moving the bricks the man decreases the rotational inertia of the system to 1.03 kg-m^2, (a) what is the resulting angular speed of the platform and (b) what...
A 41 kg child stands on a spinning platform that has been well maintained (neglect friction in the axle). Initially the platform spinning at 3.4 rev/s while the child's arms are extended outward (holding some weights). The child then pulls the weights back to close to their body. What is the final angular speed in rev/s of the platform? Assume that the child can be considered a cylinder with a diameter of 0.8 m, spinning along its center axis and...
A 35.2 kg child stands on a spinning platform that has been well maintained (neglect friction in the axle). Initially the platform is spinning at 1 rev/s while the child's arms are extended outward (holding some weights). The child then pulls the weights back to close to their body. What is the final angular speed in revis of the platform? Assume that the child can be considered a cylinder with a diameter of 1 m, spinning along its center axis...
SOS
A man stands on a platform that is rotating (without friction) with an angular speed of 2.35 rev/s; his arms are outstretched and he holds a brick in each hand. The rotational inertia of the system consisting of the man, bricks, and platform about the central axis is 5.13 kg.m2. If by moving the bricks the man decreases the rotational inertia of the system to 1.28 kg.mp, (a) what is the resulting angular speed of the platform and (b)...
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