1. A piece of dust finds itself on a CD. The spin rate of the CD is omega rpm, and the piece of dust is r cm from the center. The CD rotates for 2.5 minutes. (Ignore the forces and acceleration needed to set and keep the CD in motion; only consider the piece of dust) a) Which quantities are constant during the spinning of the dust particle along with the CD? Both Angular Velocity ar b) SET UP Using the notation 40 for angular displacement, 0 for angular position at time t, 0, for the initial angular position, w for angular velocity at time t, wo for the initial angular velocity, and a for the angular acceleration, and r for the distance of the particle from the center, determine what quantities are known and what are unknown. ● . Enter some known values below. t = 2.5 r=r a=0 W= wo min cm rad/s² rpm
1. A piece of dust finds itself on a CD. The spin rate of the CD is omega rpm, and the piece of dust is r cm from the center. The CD rotates for 2.5 minutes. (Ignore the forces and acceleration needed to set and keep the CD in motion; only consider the piece of dust) a) Which quantities are constant during the spinning of the dust particle along with the CD? Both Angular Velocity ar b) SET UP Using the notation 40 for angular displacement, 0 for angular position at time t, 0, for the initial angular position, w for angular velocity at time t, wo for the initial angular velocity, and a for the angular acceleration, and r for the distance of the particle from the center, determine what quantities are known and what are unknown. ● . Enter some known values below. t = 2.5 r=r a=0 W= wo min cm rad/s² rpm
College Physics
1st Edition
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:Paul Peter Urone, Roger Hinrichs
Chapter10: Rotational Motion And Angular Momentum
Section: Chapter Questions
Problem 8PE: During a very quick stop, a car decelerates at 7.00 m/s2. (a) What is the angular acceleration of...
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![1. A piece of dust finds itself on a CD. The spin rate of the CD is omega rpm, and the piece of dust is r
cm from the center. The CD rotates for 2.5 minutes. (Ignore the forces and acceleration needed to set
and keep the CD in motion; only consider the piece of dust)
a) Which quantities are constant during the spinning of the dust particle along with the CD?
Both Angular Velocity ar
b) SET UP
Using the notation 40 for angular displacement, 0 for angular position at time t, 0, for the
initial angular position, w for angular velocity at time t, wo for the initial angular velocity,
and a for the angular acceleration, and r for the distance of the particle from the center,
determine what quantities are known and what are unknown.
●
● Enter some known values below.
t = 2.5
r=r
α = 0
W= WO
min
cm
✔rad/s²
rpm](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5e392a71-e7bd-4981-938b-8b094393c2fe%2Ffd638074-2d9b-46e0-9bb0-c8a53daa5f69%2Ftwupo8_processed.jpeg&w=3840&q=75)
Transcribed Image Text:1. A piece of dust finds itself on a CD. The spin rate of the CD is omega rpm, and the piece of dust is r
cm from the center. The CD rotates for 2.5 minutes. (Ignore the forces and acceleration needed to set
and keep the CD in motion; only consider the piece of dust)
a) Which quantities are constant during the spinning of the dust particle along with the CD?
Both Angular Velocity ar
b) SET UP
Using the notation 40 for angular displacement, 0 for angular position at time t, 0, for the
initial angular position, w for angular velocity at time t, wo for the initial angular velocity,
and a for the angular acceleration, and r for the distance of the particle from the center,
determine what quantities are known and what are unknown.
●
● Enter some known values below.
t = 2.5
r=r
α = 0
W= WO
min
cm
✔rad/s²
rpm
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