) What is the magnitude of the tangential acceleration of a bug an the rim of an 11.5-indameter disk ir the disk accelerates uniformly fram rest to an angular speed of 76.0 rew/min in10 s m (0)When the disksat its final speed, what i the magnitude of the tangential velocity of the bug? m/s (c) One second after the tug starts from rest, what is the magnitude of its tangential acceleration? (a) dne second ater the bug starts from rest, what s the magnitude ef its centripetal acoeleration? ms () One secehd ahter the bug starts frem ret, what is its totat acceleration? (Take the positive direction te be in the direction of motion) magnitude rection 1fram the radially imward direction

) What is the magnitude of the tangential acceleration of a bug an the rim of an 11.5-indameter disk ir the disk accelerates uniformly fram rest to an angular speed of 76.0 rew/min in10 s m (0)When the disksat its final speed, what i the magnitude of the tangential velocity of the bug? m/s (c) One second after the tug starts from rest, what is the magnitude of its tangential acceleration? (a) dne second ater the bug starts from rest, what s the magnitude ef its centripetal acoeleration? ms () One secehd ahter the bug starts frem ret, what is its totat acceleration? (Take the positive direction te be in the direction of motion) magnitude rection 1fram the radially imward direction

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter8: Rotational Motion

Section: Chapter Questions

Problem 103A

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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

ta) What in the magnitude of the tangential acceleration of a bug an the rim of an 115-in dameter disk if the disk accelerates uniformly from rest to an angular speed of 76.0 rev/min in10 s?
(b) When the disk is at its final speed, what i the magnitude of the tangential velocity of the bug?
m/s
(e) One second after the bug starts from rest, what is the magnitude of its tangentiat aceleration?
(a) One second ater the bug starts from rest, what is the magnitude of its centripetal acoeleration?
m/s
() One second after the bug starts from ret, what is its total acceleration? (Take the positive direction to be in the direction of motion.)
magnitude
rection
1fram the radially inward direction

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