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homework 01 – RAHMAN, TARIQUE – Due: Jan 25 2008, 3:00 am
1
Question 1, chap 1, sect 6.
part 1 of 1
10 points
A certain force is given by the equation
F
=
KML
2
/T
4
, where
M
is a mass,
L
is a
length,
T
is a time and where
K
is a constant.
What are units of the constant
K
?
1.
[
K
] =
T
2
/L
2.
[
K
] =
T
2
/ML
3.
[
K
] =
L/T
2
4.
[
K
] =
T
6
/M
2
L
2
5.
[
K
] =
M
2
L
2
/T
6
6.
[
K
] =
ML/T
2
Question 2, chap 4, sect 1.
part 1 of 1
10 points
A ball rolling up a hill has vector
velocities
vV
1
and
vV
2
at times
t
1
and
t
2
, respectively, as shown in the Fgure.
v
1
initial
v
2
final
Which vector diagram below most accu
rately depicts the direction of the ball’s aver
age acceleration over the interval?
1.
2.
3.
4.
5.
6.
7.
Zero vector.
8.
9.
Question 3, chap 2, sect 5.
part 1 of 1
10 points
Two particles are at the same point at the
same time, initially moving in the same di
rection. Particle A has an initial velocity of
6
.
4 m
/
s and an acceleration of 3 m
/
s
2
. Parti
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 Fall '08
 Turner
 Physics, Force, Mass, Work

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