17-115. A cord is wrapped around each of the two 10-kg disks. If they are released from rest determine the angular acceleration of each disk and the tension in the cord C. Neglect the mass of the cord. 90 mm 90 mm
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- 15) An object of mass 0.5 kg., moving in a circular path of radius 0.25 m, experiences a centripetal acceleration of constant magnitude 9 m/s2. What is the objects angular speed?*21-48. The man sits on a swivel chair which is rotating with a constant angular velocity of 3 rad/s. He holds the uniform 5-lb rod AB horizontal. He suddenly gives it an angular acceleration of 2 rad/s, measured relative to him, as shown. Determine the required force and moment components at the grip, A, necessary to do this. Establish axes at the rod's center of mass G, with +z upward, and +y directed along the axis of the rod toward A. 3 rad/s 3 ft 2 ft 2 rad/s?Suppose a solid sphere of mass M and radius R rolls without slipping down on inclined plane starting from rest. The linear velocity, v, of the sphere at the bottom of the incline depends on A) Both the mass and the radius of the sphere B) Neither the mass nor the radius of the sphere C) The radius of the sphere D) The mass of the sphere
- Suppose the 50 turn coil in the figure below lies in the plane of the page and originally has an area of 0.230 m². It is stretched to have no area in 0.100 s. X Bin XBin X V What is the direction? clockwise X counterclockwise X X What is the magnitude (in V) of the average value of the induced emf if the uniform magnetic field points into the page and has a strength of 1.75 T? X X 192 X47-48. Please help answer these two questions that relate to each other, thank you so much!:))A solid sphere of mass 2.0 kg and radius 0.010 m rolls with a speed of 16 m/s. How high up an inclined plane can it climb before coming to rest? A) 7.1 m B) 71 m C) 18.29 m D) 0.71 m
- 16-146. A ride in an amusement park consists of a rotating arm AB that has an angular acceleration of aдB = 1 rad/s² QAB when @AB = 2 rad/s at the instant shown. Also at this instant the car mounted at the end of the arm has an angular acceleration of a = {-0.6k) rad/s² and angular velocity of w' (-0.5k) rad/s, measured relative to the arm. Determine the velocity and acceleration of the passenger C at this instant. = w' = 0.5 rad/s 10 ft 60° y WAB = 2 rad/s 30° x Probs. 16-145/146 B 2 ft77. . A uniform, solid sphere of radius 5.00 cm and mass 3.00 kg starts with a translational speed of 2.00 m/s at the top of an inclined plane that is 2.00 m long and tilted at an angle of 25.0° with the horizontal and rolls without slipping down the ramp. What is the sphere's speed at the bottom of the ramp? Example 9-1317-106. The truck carries the spool which has a weight of 500 Ib and a radius of gyration of kg = 2 ft. Determine the angular acceleration of the spool if it is not tied down on the truck and the truck begins to accelerate at 3 ft/s². Assume the spool does not slip on the bed of the truck.
- Which will cause a greater increase in the angular velocity of a disk: doubling the torque applied or halving the radius at which the torque is applied? Explain.19 - The propeller of an electric generator rotates at an angular speed of 3600 rpm. Calculate the linear velocity of a point 52 cm from the axis of rotation. A) 165 m/s B) 137 m/s C) 196 m/s D) 271 m/s E) 142 m/sii) A uniform sphere made of modeling clay has radius R and moment of inertia I₁ for rotation about a diameter. It is then flattened to a disk with the same radius R. What is the moment of inertia of the disk, Id, in terms of I₁? a. Id=511/4 b Id = 511/2 c. Id = 511 d. Id = 411/5 e. Id = 211/5 f. Id = I1/5