In the figure, two 9.50 kg blocks are connected bya massless string over a pulley of radius 1.80 cm and rotational inertia 7.40 x 104 kg-m?. The string does not slip on the pulley: it is not known whether there is friction between the table and the sliding block; the pulley's axis is frictionless. When this system is released from rest, the pulley turns through 1.10 rad in 127 ms and the acceleration of the blocks is constant. What are (a) the magnitude of the pulley's angular acceleration, (b) the magnitude of either block's acceleration. (c) string tension T1, and (d) string tension T2? Assume free-fall acceleration to be equal to 9.81 m/s?.

In the figure, two 9.50 kg blocks are connected bya massless string over a pulley of radius 1.80 cm and rotational inertia 7.40 x 104 kg-m?. The string does not slip on the pulley: it is not known whether there is friction between the table and the sliding block; the pulley's axis is frictionless. When this system is released from rest, the pulley turns through 1.10 rad in 127 ms and the acceleration of the blocks is constant. What are (a) the magnitude of the pulley's angular acceleration, (b) the magnitude of either block's acceleration. (c) string tension T1, and (d) string tension T2? Assume free-fall acceleration to be equal to 9.81 m/s?.

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)...

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Concept explainers

Angular speed, acceleration and displacement

Angular acceleration is defined as the rate of change in angular velocity with respect to time. It has both magnitude and direction. So, it is a vector quantity.

Angular Position

Before diving into angular position, one should understand the basics of position and its importance along with usage in day-to-day life. When one talks of position, it’s always relative with respect to some other object. For example, position of earth with respect to sun, position of school with respect to house, etc. Angular position is the rotational analogue of linear position.

Question

In the figure, two 9.50 kg blocks are connected bya massless string over a pulley of radius 1,80 cm and rotational inertia 7.40x 104
kg-m?. The string does not slip on the pulley: it is not known whether there is friction between the table and the sliding block: the
pulley's axis is frictionless. When this system is released from rest, the pulley turns through 1.10 rad in 127 ms and the acceleration of
the blocks is constant. What are (a) the magnitude of the pulley's angular acceleration, (b) the magnitude of either block's acceleration.
(c) string tension T1, and (d) string tension T2? Assume free-fall acceleration to be equal to 9.81 m/s?.
(a) Number
Units
Units
(b) Number
Units
(c) Number
Units
(d) Number

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