12. Two blocks are placed at the ends of a horizontal massless board, as in the drawing. The board is kept from roating and rests on a support that serves as an axis of rotation. The moment of inertia of this system relative to the axis is 12 kg m². Determine the magnitude of the angular acceleration when the system is allowed to rotate. 0.60 m 12 kg 1.4 m 4.0 kg Axis Support

12. Two blocks are placed at the ends of a horizontal massless board, as in the drawing. The board is kept from roating and rests on a support that serves as an axis of rotation. The moment of inertia of this system relative to the axis is 12 kg m². Determine the magnitude of the angular acceleration when the system is allowed to rotate. 0.60 m 12 kg 1.4 m 4.0 kg Axis Support

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

In an Atwood's machine as shown. The mass of block m1 is 6.00 kg and the mass of block m2 is 3.00 kg. The radius of the pulley is 0.100 m and the mass of the pulley is 12.0 kg. The system is released from rest. What is the angular acceleration of the pulley = (1/2)MR^2)?
If axis of rotation is at point B in the following figure, which distance should we take as lever arm to calculate torque produced by the tension T1? T₂ B 4.0 m 3.0 m w1 W2 3.0 m Т1 4.0 m X Can be taken any of 3.0 m or 4.0 m None of the given choices are correct
A child is playing with a 2.00 kg spinning toy (yo-yo) consisting of an axle connected to two disks, and a string looped around the axle, as shown below. The toy moves up and down as the toy winds and unwinds the string. It has a moment of inertia I = 2.72 X 10-4 kg-m2. At the time shown below, the toy is rotating with an angular speed w = 29.2 rad/s. The string is wound around the axel, whose radius is 2.50 cm. Find the total kinetic energy (rotational plus translational) of the toy as it moves up the string at that point.
A bicycle wheel initially is spinning with a tangential speed of 9 m/s. The radius of this wheel is 0.737 m, and its mass is 1 kg. The wheel takes 200 s to gradually stop spinning. Assuming the acceleration remains constant as the wheel slows down, through what total angle does it spin? 1175 rad 974 rad 1452 rad 1222 rad 1580 rad
Two blocks are placed at the ends of a horizontal massless board, as in the drawing. The board is kept from rotating and rests on a support that serves as an axis of rotation. The block on the right has a mass of 2.4 kg. Determine the magnitude of the angular acceleration when the system is allowed to rotate. 12 kg 0.60 m Axis Support 1.4 m Magnitude a of the angular acceleration =
A system of point particles is shown in the following figure. Each particle has mass 0.43 kg, and they all lie in the same plane. 62 cm 49 cm axis 29 cm (a) What is the moment of inertia (in kg. m²) of the system about the given axis? kg-m² (b) If the system rotates at 5.6 rev/s, what is its rotational kinetic energy (in J)? J
4. A playground toy has four seats, each 5.0 kg, attached to very light, 1.5 m long rods, as seen from above in the figure. If two children with masses of 15 kg and 20 kg, sit in seats opposite one another, what is the moment of inertia about the rotation axis? 1.5 m