Section 9.1 The Action of Forces and Torques on Rigid Objects1. The wheels on a moving bicycle have both translational (or linear) androtational motions. What is meant by the phrase “a rigid body, such as abicycle wheel, is in equilibrium"? (a) The body cannot have translationalor rotational motion of any kind. (b) The body can have translationalmotion, but it cannot have rotational motion. (c) The body cannot havetranslational motion, but it can have rotational motion. (d) The body canhave translational and rotational motions, as long as its translationalacceleration and angular acceleration are zero.

Answered: Section 9.1 The Action of Forces and…

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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4 3. Rotational Kinematics. Consider a rotating wheel of radius 3 m and mass 5 kg that requires 4 s to complete 54 revolutions. Its angular speed at the end of 4 s is 100 rad/s. Do the following: a) Find the constant angular acceleration of the wheel. b) Find the tangential acceleration of the wheel for a point 1m from the center and for one that is 3 m from the center. c) Find the centripetal acceleration of a point on the edge off the wheel 3 m from center. d) Find the total acceleration of a point on the edge of the wheel 3 m from the center.
The equation of motion for a rotating body (assuming it rotates about an axis parallel to the "z" coordinate axis) is Tz = Iaz We can affirm that: a) Rotational inertia | of the body unlike the mass can be negative or zero. b) It is a scalar equation, since the physical quantities present in the equation are scalars. c) It only applies to symmetrical bodies. d) It can be derived from Newton's laws that we have seen earlier.

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