Answered: Smooth Rough Họ

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

A basketball (which can be closely modeled as a hollow
spherical shell) rolls down a mountainside into a valley and then up
the opposite side, starting from rest at a height H0 above the bottom. In
Fig., the rough part of the terrain prevents slipping while the
smooth part has no friction. Neglect rolling friction and assume the system’s
total mechanical energy is conserved. (a) How high, in terms of
H0, will the ball go up the other side? (b) Why doesn’t the ball return to
height H0? Has it lost any of its original potential energy?

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