Problem 1 A disk 25.00 cm in radius rotates at a constant rate of 1 200...
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
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
please help A uniform disk of radius 0.65 m rotates clockwise about its central axis and accelerates with constant angular acceleration. At time 1-0 it is rotating at 34 rad/s, at timeに15 s later, its angular speed is 13 rad/s. (Recall 2π rad-1 rev). a. What is the direction of the angular velocity? b. What is the direction of the angular acceleration? c. Calculate the magnitude of the angular acceleration d. Through how many radians has the disk turned in...
Determine : A. It's angular speed .Units :rad/s B.The tangential speed at a point 3 cm from the centre .Units :m/s C.The radial acceleration of a point on the rim .Units :rad/s squared D.The arc length that a point on the rim moves in 2 s .Units :m A disc 9 cm in radius rotates at a constant rate of 1200 rev/min about its central axis. Determine:
A disk of radius 2.05 m rotates about its axis. Points on the disk\'s rim undergo tangential acceleration of magnitude 2.71 m/s2. At a particular time the rim has a tangential speed of 1.51 m/s. At a time 0.923 seconds later, what is the tangential speed, v, of a point on the rim, the magnitude of the point\'s radial acceleration, ar, and the magnitude of its total acceleration, atot?
A disk rotates with constant angular acceleration. The initial angular speed of the disk is 2.1π rad/s. After the disk rotates through 13.6π radians, the angular speed is 6.2π rad/s. (a) What is the magnitude of the angular acceleration? (b) How much time did it take for the disk to rotate through 13.6π radians? (c) What is the tangential acceleration of a point located at a distance of 9.9 cm from the center of the disk?
A 36.2-cm diameter disk rotates with a constant angular acceleration of 2.8 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. (a) Find the angular speed of the wheel at t = 2.30 s. rad/s (b) Find the linear velocity and tangential acceleration of P at t =...
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 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...