test0231 - Page 1 Test#3 PHYS 1111 Section Oct 30 2002...

Page 1
Test #3, PHYS 1111, Section 5, (12:20-1:10pm)
Oct. 30, 2002, Stancil
This is a multiple choice test of 13 questions. Give only one answer for
each question. Besure to enter your name and SSN on the scantron form. You
may keep the question sheet.
The moment of inertia about the the center of mass for the solid cylinder is
1/2*MR
A
2, for the hoop MRA2, and for the rod 1/12*ML
A
2.
1. The earth's radius is 6.38x10
6
m, and it completes one revolution every
24 hours. What is the tangential speed of a person standing on the
equator? / -==
2
4hvs
(~)(jOS ) =-
8 b(L/Go
j
a. 232 m/s
I~~ IM/"1 {; (\
a
b. 148 m/s .
V
==
rZ w _
1<
{Yl\
-=
0
I
J ~
X
(0
/Y1
2-
Tl
I _
L.j
6 L!
111/1
j
(c) 464 m/s
t
-J
T ) _
d.
73.8 m/s
-rTf ~
26,4(j(J
'S.
iN :..
2
1/,
T
2.
An
82.0 kg-diver stands at the edge of a 5.00-m diving board, which is