Physics 211 Spring 2012
Syracuse University
Homework Problem Set 2
p.1
Physics 211
Problem Set 2
Due Friday, 02/03/12
Last Name:___________________________________ First Name _______________
Workshop time or section:___________________TA name or Room # ___________
Please submit your homework on this sheet. If you need more space than is available,
please attach additional sheets of paper.
1.
Each of the displacement vectors
A
and
B
shown below has a magnitude of 3 m.
i.
Find graphically:
(a)
A
+
B
(b)
A

B
(c)
B

A
(d)
A
– 2
B
ii. In addition to the problem as given in the text, write down the x and y components of
vectors
A
and
B
, and find components of the resultant vector in each part obtained by
algebraic calculation. Check consistency of the values of these components with the
resultant vectors obtained graphically.
A
x
=
B
x
=
A
y
=
B
y
=
(a)
(b)
(A+B)
x
=
(AB)
x
=
(A+B)
y
=
(AB)
y
=
(c)
(d)
(BA)
x
=
(A2B)
x
=
(BA)
y
=
(A2B)
y
=
y
B
3
A
3
30
0
x
y
B
3
A
3
30
0
x
y
B
3
A
3
30
0
x
y
B
3
A
3
30
0
x
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