homework 02 – RAHMAN, TARIQUE – Due: Jan 30 2008, 3:00 am
1
Question 1, chap 3, sect 1.
part 1 of 1
10 points
Which of the following are scalar quantities,
which are vector quantities?
a) velocity.
b) age.
c) speed.
d) acceleration.
e) temperature.
1.
Vectors: velocity. Scalars: age, tempera
ture, speed,acceleration.
2.
Vectors: velocity, acceleration. Scalars:
age, temperature, speed.
3.
Vectors: velocity, acceleration, age, tem
perature, speed.
4.
All are wrong.
5.
Vectors:
age,
temperature,
speed.
Scalars: velocity, acceleration.
Question 2, chap 3, sect 2.
part 1 of 1
10 points
A vector of magnitude 3 CANNOT be
added to a vector of magnitude 4 so that
the magnitude of the resultant is
1.
5.
2.
3.
3.
0.
4.
1.
5.
7.
Question 3, chap 3, sect 99.
part 1 of 2
10 points
B
C
A
D
R
P
The vector
v
R
shown in the sketch may be
expressed in terms of
v
A
,
v
B
,
v
C
, and
v
D
, which
are the edges of a parallelogram, as
1.
v
R
=
v
C
+
v
D .
2.
v
R
=
v
B

v
A .