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A horizontal platform in the shape of a circular disk rotates on a frictionless bearing about...
A horizontal platform in the shape of a circular disk rotates on a frictionless bearing about a vertical axle through the center of the disk. The platform has a radius of 4.64 m and a rotational inertia of 141 kg·m2 about the axis of rotation. A 53.2 kg student walks slowly from the rim of the platform toward the center. If the angular speed of the system is 1.48 rad/s when the student starts at the rim, what is the...
A horizontal platform in the shape of a circular disk rotates on a frictionless bearing about a vertical axle through the center of the disk. The platform has a mass of 114.0 kg, a radius of 3.80 m, and a rotational inertia of 1.65×103kgm2 about the axis of rotation. A student of mass 57.0 kg walks slowly from the rim of the platform toward the center. If the angular speed of the system is 1.89 rad/s when the student starts...
A horizontal platform in the shape of a circular disk rotates on a frictionless bearing about a vertical axle through the center of the disk. The platform has a radius of 3.77 m and a rotational inertia of 200 kg·m2 about the axis of rotation. A 68.3 kg student walks slowly from the rim of the platform toward the center. If the angular speed of the system is 1.28 rad/s when the student starts at the rim, what is the...
A horizontal platform in the shape of a circular disk rotates on a frictionless bearing about a vertical axle through the center of the disk. The platform has a radius of 3.09 m and a rotational inertia of 445 kg·m2 about the axis of rotation. A 68.5 kg student walks slowly from the rim of the platform toward the center. If the angular speed of the system is 2.42 rad/s when the student starts at the rim, what is the...
A horizontal platform in the shape of a circular disk rotates on a frictionless bearing about a vertical axle through the center of the disk. The platform has a radius of 3.87m and a rotational inertia of 429kg.m^2 about the axis of rotation. A 78.4kg student walks slowly from the rim of the platform towards the center. The angular speed of the system is 2.95rad/s when the student starts at the rim. What is the angular speed when the student...
A horizontal platform in the shape of a circular disk rotates on a frictionless bearing about a vertical axle through the center of the disk. The platform has a radius of 3.40 m and a rotational inertia of 464 kg·m2 about the axis of rotation. A 68.9 kg student walks slowly from the rim of the platform toward the center. If the angular speed of the system is 1.48 rad/s when the student starts at the rim, what is the...
e susJrom rest at the top of the well and falls for before hitting the water, how far does it fall? Moment of inertia of cylinder 1-% MR 2. A ladder is leant against the wall. The coefficient of the static friction p. between the ladder and the wall is 0.3 and the coefficient of the static friction g, between the ladder and the floor is 0.4. The center of mass of the ladder is in the middle of it...
A person with mass mp = 74 kg stands on a spinning platform disk with a radius of R = 2.37 m and mass md = 184 kg. The disk is initially spinning at ? = 1.9 rad/s. The person then walks 2/3 of the way toward the center of the disk (ending 0.79 m from the center). 1) What is the total moment of inertia of the system about the center of the disk when the person stands...
15 > A horizontal circular platform rotates counterclockwise about its axis at the rate of 0.813 rad/s. You, with a mass of 68.9 kg, walk clockwise around the platform along its edge at the speed of 1.17 m/s with respect to the platform. Your 20.1 kg poodle also walks clockwise around the platform, but along a circle at half the platform's radius and at half your linear speed with respect to the platform. Your 18.9 kg mutt, on the other...
4 (Around a merry-go-round) rontal platform in the shape of a circular disk rotates in a horirontal plane about a frictionless, vertical axis through the center of the disk. The platform has a mass M 100 kg and a radius R = 1.9 m. Two students, whose masses are each m 54 kg (treat them each as a point mass), are located on the disk at radius T = 1.6 m and 0.9 m as shown in the figure. A....