Answered: A0.65-m-diameter solid sphere can be…

A0.65-m-diameter solid sphere can be rotated about an axis through its center by a torque of 11.0 m N which accelerates it uniformly from rest through a total of 180 revolutions in 17.0 s.

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter10: Fixed-axis Rotation

Section: Chapter Questions

Problem 8CQ: A massless tether with a masses tied to both ends rotates about a fixed axis through the center. Can...

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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

A 0.65-m-diameter solid sphere can be rotated about
an axis through its center by a torque of 11.0 m · N
which accelerates it uniformly from rest through a total
of 180 revolutions in 17.0 s.

Part A
What is the mass of the sphere?
Express your answer using two significant figures.

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