A thin, 110 g disk with a diameter of 7.4 cm rotates about an axis through its center with 0.12 J of kinetic energy. What is the speed of a point on the rim?
A thin, 110 g disk with a diameter of 7.4 cm rotates about an axis through...
A thin, 90.0 g disk with a diameter of 7.50 cm rotates about an axis through its center with 0.300 J of kinetic energy. What is the speed of a point on the rim?
A thin, 100 g disk with a diameter of 6.00 cm rotates about an axis through its center with 0.210 J of kinetic energy. You may want to review (Pages 299-301)
A thin disk rotates about an axis that goes through its center perpendicular to its plane. The disk is rotating clockwise and speeding up. What can be said about the angular speed and acceleration of the disk? Angular speed is positive, angular acceleration is negative Angular speed is negative, angular acceleration is positive Angular speed is positive, angular acceleration is positive Angular speed is negative, angular acceleration is negative
A disk rotates about an axis through its center. Point A is located on its rim and point B is located exactly halfway from the center toward the rim. What is the ratio of the angular velocity WA to that of @, and the tangential velocity VA to that of Vg? HINT (a) the angular velocity w, to that of ⓇA - (b) the tangential velocity VA to that of VB
disk 7.96 cm in radius rotates at a constant rate of 1 280 rev/min about its central axis. (a) Determine its angular speed. rad/s (b) Determine the tangential speed at a point 3.08 cm from its center. m/s (c) Determine the radial acceleration of a point on the rim. magnitude km/s2direction ---Select--- toward the center away from the center (d) Determine the total distance a point on the rim moves in 1.98 s. m
A thin, flat disk rotates at 12.9 rev/min around a vertical axis at its center. (a) What is its angular speed in radians per second? What is the linear speed (in centimeter per second) of a point on the disk (b)29.2 cm and (c)5.94 cm from the rotation axis?
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 disk 7.90 cm in radius rotates at a constant rate of 1 210 rev/min about its central axis. (a) Determine its angular speed. rad/s (b) Determine the tangential speed at a point 2.96 cm from its center. m/s (c) Determine the radial acceleration of a point on the rim. magnitude directionSelect km/s (d) Determine the total distance a point on the rim moves in 1.92 s.
A disk 8.04 cm in radius rotates at a constant rate of 1 210 rev/min about its central axis. (a) Determine its angular speed. _____rad/s (b) Determine the tangential speed at a point 2.92 cm from its center. _____m/s (c) Determine the radial acceleration of a point on the rim. magnitude ______km/s2 direction_____ (d) Determine the total distance a point on the rim moves in 1.90 s. ______m
A 45.0-cm diameter disk rotates with a constant angular acceleration of 2.50 rad/s2. It starts from rest at t = 0, and a line drawn from the center of the disk to a point P on the rim of the disk makes an angle of 57.3° with the positive x-axis at this time. At t = 2.30 s, find (a) the angular speed of the wheel, (b) the linear speed and tangential acceleration of P, and (c) the position of...