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Physics / College Physics 1 / Chapter 10 / Problem 2

College Physics | 1st Edition | ISBN: 9781938168000 | Authors: Paul Peter Urone, Roger Hinrichs

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Integrated ConceptsAn ultracentrifuge accelerates from

Chapter 10, Problem 2

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QUESTION:

Problem 2PE

Integrated Concepts

An ultracentrifuge accelerates from rest to 100,000 rpm in 2.00 min. (a) What is its angular acceleration in rad/s2 ? (b) What is the tangential acceleration of a point 9.50 cm from the axis of rotation? (c) What is the radial acceleration in m/s2 and multiples of g of this point at full rpm?

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QUESTION:

Problem 2PE

Integrated Concepts

An ultracentrifuge accelerates from rest to 100,000 rpm in 2.00 min. (a) What is its angular acceleration in rad/s2 ? (b) What is the tangential acceleration of a point 9.50 cm from the axis of rotation? (c) What is the radial acceleration in m/s2 and multiples of g of this point at full rpm?

ANSWER:

Q: An ultracentrifuge accelerates from rest to 100,000 rpm in 2.00 min. (a) What is its angular acceleration in rad/s2 ? (b) What is the tangential acceleration of a point 9.50 cm from the axis of rotation? (c) What is the radial acceleration in m/s2 and multiples of g of this point at full rpm?

Step By Step Solution

Step 1 of 3

Given,

Initial angular velocity

Final angular velocity

Time t=2 min

(a)

First we need to convert the units of w_{f} and t, and then we can use the formula for angular velocity from constant angular acceleration to calculate .

Angular acceleration

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